windows 10 caculator downloads 8 Best Free Open Source Calculator Software For Windows. Here is a list of best free open source calculator software for Windows. What distinguishes these calculators from the calculators listed here is the fact that these are free and open source calculators. You can find the source code of these calculators from their official websites. The source code can be downloaded, studied, and manipulated by the interested users. You can perform simple as well as complex calculations using these software. These let you solve different kinds of mathematical problems including Algebra , Calculus , Combinatorics , Complex Numbers , Data Sets , Date & Time , Exponents & Logarithms , Geometry , Logical , Matrices & Vectors , Number Theory , Statistics , Step Functions , Trigonometry, etc. In addition, you can also perform calculations related to graphs, physics, economics, probabilities, etc. Some of these also provide some constants to add in the input expression. A few of these also provide a formula book containing some generic formulae to use directly in your calculations. You can also record an expression as a macro to quickly use later. Apart from these features, you can view calculation history, import expressions from CSV file, save results, etc. My Favorite Open Source Calculator Software For Windows: Qalculate is my favorite open source calculator for Windows. It lets you solve a wide number of problems in different approximation and fractional modes. Qalculate. Qalculate is a free open source calculator software for Windows. It is quite an advanced calculator with various approximation modes (Always Exact, Interval Arithmetic, Try Exact, Approximate) and fractional modes (Decimal Rationals, Exact Rationals, Fraction, Combined). You can also select number base, numerical display, unit display, assumptions, algebraic mode, precision, decimal, RPN mode, angle unit, etc. to perform calculations. Just type an expression and hit enter to get respective results. You can also view calculation history on its main interface which can be copied to the clipboard. The good part is that it lets you import expression from CSV files for calculation purpose and later export results to another CSV file. It supports different kinds of calculations which include Algebra (linear equation, summation, differential equation, etc.), Calculus (integrate, differentiate, limit, etc.), Combinatorics (combinations, factorial, double factorial, permutations, derangements, etc.), Complex Numbers , Data Sets , Date & Time , and Exponents & Logarithms . There are many more calculations which can be performed using this open source calculator. These include Economics (microeconomics, compound, dollar decimal, dollar fraction, interest rate, treasury bill price, etc.), Geometry (circle, conde, cube, cylinder, sphere, square, etc.), Logical , Matrices & Vectors , Number Theory , Statistics (mean, moments, random numbers, distribution, etc.), Step Functions , Trigonometry , etc. It provides some additional utilities which you can use, such as Replace, Concatenate String, Interval, Function, RPN Stack Register, RPN Stack Vector, Process Matrix Elements, etc. A separate Conversion tab is provided to carry out various unit conversions. From its Variables menu, you can add various variables including physical constants, date & time, basic constants, large numbers, small numbers, etc. Also, you can select and add a unit for a particular calculation such as angular acceleration, currency, electric charge, electric current, pressure, surface tension, and many more. In general, it is one of the best solutions to the students or general users who are looking for a free and open source calculator software. SpeedCrunch. SpeedCrunch is a nice free open source calculator software for Windows. It lets you perform basic and scientific calculations. It comes with a formula book with various formulae related to different functions including Algebra, Geometry, Unit Conversions, Electronics, and Radio Frequency . You can directly select a formula, fill in values, and get the respective results. If there is a mistake in the input expression, it will display the error. You can also view constants and respective values, functions, variables, etc. It lets you add user functions as well. Apart from these basic features, you get some other useful options which are: It lets you view the history of performed calculations. You can export performed calculations as TXT or HTML file. It lets you customize result format, input format, and angle unit . You can customize software behavior, display settings, and language too. Precise Calculator. Precise Calculator is a free , portable , and open source calculator for Windows. Using it, you can perform basic as well as scientific calculations. You can use some generic constant values directly in your calculations from its Constants menu. It lets you set arbitrary precision value and select units to perform calculations. Also, you can select number base (binary, decimal, hexadecimal), angle unit, and result format (normal, scientific, engineering, fix). It lets you create macros for specific functions to use them later. You can also use some inbuilt macros including prime numbers, cubic equations, quadratic equations, divisors, various plane, etc. The history of calculations can also be retrieved any time. The results can be saved in a text file. There are various program settings that you can configure including log file creation, font and color customization, interface language selection, etc. Xcas is the next open source calculator software for Windows. It can be used to perform a variety of calculations which include simple arithmetic calculations, trigonometry functions, factorization, calculus (integration, derivatives, Laplace transform, etc.), linear algebra (create matrix, transpose, image, kernel, etc.), equations (linear equation, differential equation, recurrence equation, etc.), and probability . It also lets you quickly perform graphs (curve, surface, sequence, trace, animation, etc.), geometry (points, lines, triangles, circles, polygons, solids, transformation, etc.), and physics (area, volume, length, energy, temperature, pressure, viscosity, etc.) related calculations. It provides some inbuilt commands in different categories to use in calculations, such as constants, permutations, intervals, complex, linear algebra, polynomials, etc. As you perform calculations, you can view the calculation history for current session on its interface. You can print the results or save them in its native file formats for later use. All in all, it is a good calculator software which comes with open source license. You can configure various properties in this software such as graph configuration, language, font, color, etc. GraphCalc. GraphCalc is one more open source calculator in this list. It lets you perform various calculations which include basic arithmetic operations, trigonometry problems, 2D graphing, conversion, etc. It provides a dedicated Equation Solver tool to solve a single variable algebraic equations. In addition, some generic calculations like area, surface area, volume, quadratic equations, etc. can directly be performed. For 2D graphing, you get analysis options like Find Area, Trace, Tangent Line, Distance Between Two Points, N-Slider, etc. You can copy, print, or export the graph to BMP image. From its Options > Mode option, you can select Decimal Places, Output Format, Unit, Base , etc. You can save specific commands to a script file so that you can use it later. It lets you save output to an RTF file. The calculation history can be easily viewed from the interface. Kalq is a simple open source calculator for Windows. It has a compact interface as you can see in above screenshot and it works in distraction free mode. After launching it, type or copy and paste expression you want to solve in the bar. As you type the expression, it displays respective results in real time. You can solve simple mathematical problems in it like fractions, multiply, square root, square, cube, inversion, etc. On clicking the option highlighted in above screenshot, you can access various options like History, Bar Size, Formatting, Copy Answer, etc. TTCalc. TTCalc is another free open source calculator for Windows. It incorporates arithmetical functions, trigonometric functions, inverse trigonometric functions, hyperbolic functions, inverse hyperbolic functions, logical operators, logarithms, etc. for calculations. It lets you add custom variables and functions to use in calculations. The precision value can be set to small, medium, or high. From Display tab, you can set parameters like input base, output base, input decimal point, output decimal point, rounding, etc. JCalc. JCalc is another one of open source calculators for Windows. It is a portable calculator which needs to no installation and can be used on the go. It is quite a simple calculator which lets you perform simple, binary, octal, and hexadecimal calculations, and solve simple equations. A keypad to enter an expression is provided in it. The history of added expressions is visible on the interface. You can also save the expression with the respective result in a separate file. Download and Repair Calculator.exe Issues. Calculator.exe, also known as a Calculator.exe file, was created by Cerulean Studios for the development of Microsoft Calculator. EXE files fall under under the Win64 EXE (Executable application) file type category. The first version of Calculator.exe for Windows 10 was introduced on 07/29/2015 in Windows 10. On 09/04/2019, version 10.1804.1906.03005 was released for Trillian 6.1.0.17. Calculator.exe is included with Trillian 6.1.0.17, Avira Free Antivirus 15.0.1909.1591, and Windows 10. Below, you find comprehensive file information, instructions for simple EXE file troubleshooting, and list of free Calculator.exe downloads for each available file version. File Analysis Provided by Jason Geater (Author) Recommended Download: Fix Calculator.exe / Trillian-related registry issues with WinThruster. Compatible with Windows 10, 8, 7, Vista, XP and 2000. Average User Rating. Optional Offer for WinThruster by Solvusoft | EULA | Privacy Policy | Terms | Uninstall. File Overview. Developer and Software Information Software Developer: Microsoft Corporation Software Program: Microsoft Calculator Legal Copyright: ©Microsoft Corporation. All rights reserved. File Details Character Set: Unicode Language Code: English (U.S.) File Flags: (none) File Flags Mask: 0x003f Entry Point: 0x89cc4 Code Size: 2147328. File Info Description File Size: 3.9 MB File Modification Date/Time: 2019:10:04 18:01:12+00:00 File Type: Win64 EXE MIME Type: application/octet-stream Machine Type: AMD AMD64 Time Stamp: 2019:06:03 22:35:12+00:00 PE Type: PE32+ Linker Version: 14.16 Code Size: 2147328 Initialized Data Size: 1927168 Uninitialized Data Size: 0 Entry Point: 0x89cc4 OS Version: 6.2 Image Version: 1906.3005 Subsystem Version: 6.2 Subsystem: Windows GUI File Version Number: 10.1804.1906.3005 Product Version Number: 10.1804.1906.3005 File Flags Mask: 0x003f File Flags: (none) File OS: Win32 Object File Type: Executable application File Subtype: 0 Language Code: English (U.S.) Character Set: Unicode Company Name: Microsoft Corporation File Description: Calculator.exe File Version: 10.1804.1906.03005 Internal Name: Calculator Legal Copyright: ©Microsoft Corporation. All rights reserved. Product Name: Microsoft Calculator Product Version: 10.1804.190603005-1804.

✻ Portions of file data provided by Exiftool (Phil Harvey) distributed under the Perl Artistic License. Optional Offer for WinThruster by Solvusoft | EULA | Privacy Policy | Terms | Uninstall. What are Calculator.exe Error Messages? Calculator.exe Runtime Errors. Runtime errors are Trillian errors that occur during "runtime". Runtime is pretty self-explanatory; it means that these EXE errors are triggered when Calculator.exe is attempted to be loaded either when Trillian is starting up, or in some cases already running. Runtime errors are the most common form of EXE error you will encounter using Trillian. In most cases, Calculator.exe runtime errors occurring while the program is running will result in the program terminating abnormally. Most of these Calculator.exe error messages mean that Trillian was either unable to locate this file on startup, or the file is corrupt, resulting in a prematurely- aborted startup process. Generally, Trillian will be unable to start without resolving these errors. Some of the most common Calculator.exe errors include: Calculator.exe - Bad Image. Calculator.exe Application Error. Calculator.exe could not be found. Calculator.exe could not be installed. Calculator.exe could not be launched. Class not registered. Calculator.exe could not be started. Calculator.exe failed to initialize properly. Calculator.exe has encountered a problem and needs to close. We are sorry for the inconvenience. Calculator.exe is not a valid Win32 application. Calculator.exe is not running. Cannot find Calculator.exe. Error starting program: Calculator.exe. Faulting Application Path: Calculator.exe. The file Calculator.exe is missing or corrupt. Windows failed to start - Calculator.exe. The program can’t start because Calculator.exe is missing from your computer. Try reinstalling the program to fix this problem. Thus, it's critical to make sure your anti-virus is kept up-to-date and scanning regularly. Finding the source of the Calculator.exe error is key to properly resolving these errors. Although most of these EXE errors affecting Calculator.exe will happen during startup, occasionally you will encounter a runtime error while using Microsoft Calculator. This can occur due to poor programming on behalf of Microsoft Corporation, conflicts with other software or 3rd-party plug-ins, or caused by damaged and outdated hardware. Also, these types of Calculator.exe errors can occur if it has been accidentally moved, deleted, or corrupted by a malware infection. Thus, it's critical to make sure your anti-virus is kept up-to-date and scanning regularly. Optional Offer for WinThruster by Solvusoft | EULA | Privacy Policy | Terms | Uninstall. How to Fix Calculator.exe Errors in 3 Steps (Time to complete: If you're encountering one of the error messages above, follow these troubleshooting steps to resolve your Calculator.exe issue. These troubleshooting steps are listed in the recommended order of execution. Step 1: Restore your PC back to the latest restore point, "snapshot", or backup image before error occurred. To begin System Restore (Windows XP, Vista, 7, 8, and 10): Hit the Windows Start button When you see the search box, type " System Restore " and press " ENTER ". In the search results, find and click System Restore . Please enter the administrator password (if applicable / prompted). Follow the steps in the System Restore Wizard to choose a relevant restore point. Restore your computer to that backup image. If the Step 1 fails to resolve the Calculator.exe error, please proceed to the Step 2 below. Step 2: If recently installed Trillian (or related software), uninstall then try reinstalling Trillian software. You can uninstall Trillian software by following these instructions (Windows XP, Vista, 7, 8, and 10): Hit the Windows Start button In the search box, type " Uninstall " and press " ENTER ". In the search results, find and click " Add or Remove Programs " Find the entry for Trillian 6.1.0.17 and click " Uninstall " Follow the prompts for uninstallation. After the software has been fully uninstalled, restart your PC and reinstall Trillian software. If this Step 2 fails as well, please proceed to the Step 3 below. Step 3: Perform a Windows Update. When the first two steps haven't solved your issue, it might be a good idea to run Windows Update. Many Calculator.exe error messages that are encountered can be contributed to an outdated Windows Operating System. To run Windows Update, please follow these easy steps: Hit the Windows Start button In the search box, type " Update " and press " ENTER ". In the Windows Update dialog box, click " Check for Updates " (or similar button depending on your Windows version) If updates are available for download, click " Install Updates ". After the update is completed, restart your PC. If Windows Update failed to resolve the Calculator.exe error message, please proceed to next step. Please note that this final step is recommended for advanced PC users only. Optional Offer for WinThruster by Solvusoft | EULA | Privacy Policy | Terms | Uninstall. If Those Steps Fail: Download and Replace Your Calculator.exe File (Caution: Advanced) If none of the previous three troubleshooting steps have resolved your issue, you can try a more aggressive approach (Note: Not recommended for amateur PC users) by downloading and replacing your appropriate Calculator.exe file version. We maintain a comprehensive database of 100% malware-free Calculator.exe files for every applicable version of Trillian. Please follow the steps below to download and properly replace you file: Locate your Windows operating system version in the list of below "Download Calculator.exe Files". Click the appropriate "Download Now" button and download your Windows file version. Copy this file to the appropriate Trillian folder location: If this final step has failed and you're still encountering the error, you're only remaining option is to do a clean installation of Windows 10. GEEK TIP : We must emphasize that reinstalling Windows will be a very time-consuming and advanced task to resolve Calculator.exe problems. To avoid data loss, you must be sure that you have backed-up all of your important documents, pictures, software installers, and other personal data before beginning the process. If you are not currently backing up your data, you need to do so immediately. Optional Offer for WinThruster by Solvusoft | EULA | Privacy Policy | Terms | Uninstall. Calculator (Windows) Disclaimer: The www.tvalx.com website no longer exists. This software is no longer being updated. Compact Scientific Calculator 36 is a professional scientific calculator. It allows dealing with various advanced mathematical operations. License: Free OS: Windows XP Windows 2000 Language: EN Version: 1.0.05. hp 12c Financial Calculator. RLM 12C Financial Calcultor is a financial calculator. The application is the perfect reconstruction of the model 12c from HP: its interface takes up perfectly the original model. It includes 120 financial, marketing, mathematics and. License: Shareware OS: Windows XP Windows Vista Windows 7 Windows 8 Windows 10 Language: EN Version: 4.2. Free Smart Math Calculator. We often encounter difficulties in achieving high accuracy in calculations with a typical calculator, right? Free Smart Math Calculator is a software that offers greater accuracy in the results of mathematical operations, even the. License: Free OS: Linux Windows 7 Windows 8 Windows 10 Mac OS X Language: EN Version: 2.2. Matrix Calculator Pro. Matrix Calculator Pro is a tool designed to handle complex mathematical operations, especially the calculation of matrices. It easy-to-use and provides fast calculation. Key Features Matrix calculation Supported formats Fast processing. License: Free OS: Windows XP Windows Vista Windows 2000 Language: EN Version: 5.3. Statistics Calculator. Statistics Calculator is a tool designed for researchers who for example, need to write a report and execute a test for statistical analysis significance without complex schemes, heavy programs or long calculations. Key Features. License: Shareware OS: Windows XP Windows Vista Windows 7 Language: EN Version: 3. Pattern-Making Calculator. Pattern-Making Calculator is a program specially designed to convert the decimal into fraction. It also provides several options in terms of calculation. Key Features Both converter and calculator: the program can be used as a normal. License: Free OS: Windows XP Windows 2000 Windows 7 Windows 8 Language: EN Version: 1.0. Date Calculator. Note: it seems that the software hasn't been updated for several years - the version linked to this page is the latest to exist. Date Calculator allows calculating the number of days, weeks, months or years between two intervals of. License: Free OS: Windows XP Language: EN Version: 2.74. Moffsoft calculator 2. Moffsoft Calculator 2 is a software that can help you to crunch numbers and cope with figures. You can save the tape, make business and tax calculations. Key Features Calculator Tape: the software offers the possibility to save the. License: Free OS: Windows XP Windows Vista Windows 2000 Windows 7 Language: EN Version: 2.2.1.34. PG Calculator. PG Calculator is a scientific calculator with a broad screen for your various operations. It has an attractive interface for configuring its parameters. This computer can work in algebraic and RPN mode and support calculations of .whole. License: Shareware OS: Windows 2000 Windows XP Language: EN Version: 2.2. Calculator-7. The Calculator-7 is a software that acts like a pocket calculator and works under all versions of Windows and requires only 1MB of disk space. It can handle calculations up to 24 digits before the decimal point. It includes a function. License: Shareware OS: Windows 2000 Windows XP Windows Vista Windows 7 Language: EN Version: 1.01. AVD Weight and Volume Calculator. AVD Mass and Volume Calculator, previously known as AVD Weight and Volume Calculator, is a tool that enables you to measure physical parameters of objects in 3D. The application calculates the weight, volume and mass of various shapes. License: Shareware OS: Windows XP Windows Vista Windows 7 Windows 8 Language: EN Version: 8.1. Mini Calculator. Mini Calculator is a simple pocket calculator equipped with all the basic functions (addition, multiplication, subtraction, division, etc.). This Mini Calculator is practical because it only takes up very little space of your desktop or. License: Free OS: Windows XP Windows Vista Windows 2000 Language: EN Version: 1.0.4.8. Math Mechanixs. Mathematics is a real challenge for most people. Mechanixs Math has been designed to assist in the analysis of a mathematical problem. It also serves as a calculator, a program with multiple functions. Key Features Resolution: with. License: Free OS: Windows 2000 Windows XP Language: EN Version: 1.5.0.3. EG Calc. EG Calc is a calculator for performing mathematical calculations. With this calculator you can perform arithmetic, logic and trigonometric calculations. It also includes many other features. License: Shareware OS: Windows 2000 Windows XP Windows Vista Language: EN Version: 1.0. Calculator Pro. With Calculator Pro, your PC can be used as a scientific calculator. This application allows you to calculate different types of mathematical operations using many types of functions such as trigonometric or hyperbolic functions. Key. License: Free OS: Windows XP Windows Vista Windows 2000 Windows 7 Language: EN Version: 2.4.012. Calculator With Paper Roll. Calculator With Paper Roll is a software designed by Micro Marcacci. This is a calculating tool with a paper roll placed on the right side. Detailed below are its features. Key features Paper roll: As mentioned above, the software is. License: Free OS: Windows XP Windows Vista Windows 2000 Language: EN Version: 2.3.0.1. SuperbCalc. Designed with Java technology, SuperbCalc is a very powerful financial calculator. It has more advanced features than the standard calculator, for instance, operation history backup. This tool allows you to perform fast and accurate. License: Free OS: Windows 2000 Windows XP Windows Vista Language: EN Version: 1.0 Beta 7. CalcAnt. CalcAnt is a pocket calculator published by SFR GmbH to help you make your calculations easy. What differentiates it with other calculators is its ability to review all your transactions. Next to the keyboard, it offers a virtual paper. License: Free OS: Windows 2000 Windows XP Windows Vista Language: EN Version: 3.2.1. Calculation Made Easy. Some people are not good at calculating either child or adult. Calculation Made Easy will train them to make it fast and without any mistakes. Key features: Easy : This software allows its users to make the 4 calculation systems less. License: Shareware OS: Windows 2000 Windows XP Windows Vista Language: EN Version: 4.1. EBAS Calculator. EBAS Calculator is a software created by Marcin Borkwoski which is used to balance chemical equation and stoichiometry. It allows the user to simplify the calculation process with the reagent databases. Key features Chemical equation. License: Free OS: Windows XP Windows Vista Windows 2000 Windows 7 Language: EN Version: 1.1.0.0. Calculator disappeared from Windows 10. My calculator disappeared from my Windows 10 desktop. When I try to install it again it states its already installed. I click the open button and it will not open. How do I get my calculator back? ***Post moved by the moderator to the appropriate forum category.*** Subscribe Subscribe to RSS feed. Report abuse. Thank you for posting your query in Microsoft Community. We do understand your concern and we will be happy to help you regarding this. I request you to remove Calculator by following the below steps: Open the Task manager. Here’s a tip: Press Ctrl + Shift + Esc. Click File > Run New Task Make sure you have a check mark beside “Create this task with administrative privileges” Type CMD Type the following 2 commands at the CMD prompt: powershell get-appxpackage *Microsoft.WindowsCalculator* | remove-appxpackage. Now you can install the Calculator from Windows store or from the below link: I hope this helps you. If you have any further queries, feel free to contact us. We will be happy to help you. How to Fix Windows 10 Calculator Missing Or Uninstalled. Microsoft has replaced most of its legacy apps with modern apps in Windows 10. This includes the calculator app. Sometimes the calculator app goes missing or is mistakenly uninstalled from Windows 10. In this article, we will discuss how to fix Windows 10 calculator missing or how to install it again from Microsoft Store. How to install Calculator from Microsoft Store in Windows 10. If your computer does not have a calculator or has accidentally been deleted, here is how you can download and install the application from the Microsoft store. Note that you must be signed in to your profile using a Microsoft account. Simply download Windows Calculator from the link below: Start Microsoft Store from the Start Menu. Or go to Run –> ms-windows-store: In the top search bar, search for Windows Calculator . Under Apps , click on the first icon, such as the one shown below: Now click on Get to download and install the application. After the app is installed, it can be accessed from the Start Menu by searching for calculator . Or you can also go to Run –> calc . This will also open the same calculator app. How to assign shortcut keys to Calculator in Windows. Using shortcut keys to perform simple tasks has always been our favorite in Windows 10. However, by default, there are no shortcut keys assigned to the calculator. This can be changed by performing the following: Right-click on the blank space on Desktop, expand New, and then click on Shortcut. In the Create Shortcut window, enter the following path under Type the location of the item, or simply click Browse and then navigate to the Windows Calculator app. C:\Windows\System32\calc.exe. Now you can access the Windows Calculator simply by pressing the shortcut keys from anywhere within the Windows. What Windows Calculator has to offer. Unlike our physical calculators, the Windows Calculator consists of various other features that can be used for the user’s convenience. Let us see what some of these handy features are. Upon launching the application, you will see a window such as the one shown below. Apart from the basic calculations which can be performed from the keypad, the top bar consists of various features. You can check the old calculations performed by clicking the clock-like icon on the top-right, or click on the middle button to keep the calculator always on top of other applications. The Standard indicates that the calculator is currently in Standard mode, which can be changed by clicking on the three bars left of it. Upon clicking the three bars, you are presented with a list of options to choose from. The calculator can be converted into the Scientific mode for more complex calculations, or into Graphical mode to plot graphs from equations. The Programmer mode can be used to convert values between decimals, hexadecimal, octanes, or binary. Going further down the menu, the calculator also offers a range of different converts for instant results. These features indicate that this application can be extremely useful even when performing daily regular tasks. Troubleshooting the Windows Calculator. If you are experiencing problems with your Calculator app, you can choose any or all of the following solutions to bring it back to life. Check for updates. Navigate to Start Menu -> Settings (Gear) Icon -> Update & Security Click on Check for updates and install any pending updates. Now navigate to the Microsoft store and click on the Pending updates button on the top-right corner. If you do not see this button, it means your applications are already up to date. Now click on Update all to begin updates for all Microsoft applications on your computer. Once all the applications have been updated, including Windows Calculator, relaunch the application and check if the error is resolved. Running the System File Checker. Often Windows files are corrupted or accidentally deleted, which causes some of the apps to malfunction. A quick command can be used to rebuild those files and run the applications smoothly. Open the Command Prompt by typing in cmd in Run. Enter the following command: sfc /scannow. The command will take a while to execute completely. When done, recheck if the Windows Calculator is functional now. Running the Windows Troubleshooter. Windows Troubleshooter is a built-in utility in Windows 10 that can be used to resolve day-to-day errors experienced within the operating system. Lets see how this utility can be used to troubleshooter the Calculator. Navigate to the following: Start Menu -> Settings (Gear) Icon -> Update & Security -> Troubleshoot -> Additional Troubleshooters. Now scroll to the bottom of the screen, click on Windows Store apps , and then Run the troubleshooter . A new wizard will launch to automatically detect the problems of any Windows applications. Go through with the wizard and perform any necessary actions recommended by it. When completed, recheck the application for any errors. Resetting the application. Navigate to the following: Start Menu -> Settings (Gear) Icon -> Apps In the right pane, click on Calculator , and then Advanced options . Then scroll down and click on Reset . If confirmation is required, click on Reset again. The application has now been reset and should be fully functional. If the error still persists, resort to the option down below. Reinstalling Windows Calculator using PowerShell. If you find that the Windows Calculator is still not free of errors, or is malfunctioning, you can always get rid of it and reinstall the application. . Enter the following command: Get-AppxPackage –AllUsers This command will display a long list of applications and their details. Right-click on the title bar , expand Edit , and then click on Find . Now search for Microsoft.WindowsCalculator in the Name title, and note the name in front of PackageFullName by selecting it and then right-clicking on it to copy. Closing words. The Windows Calculator is a handy tool when it comes to solving complex mathematical equations and conversions. Rather than switching between devices for calculations, Microsoft offers a list of features within its application. Windows Calculator can also be added to hotkeys for quick access from anywhere within Windows. If the application is missing or malfunctioning on your device, this article offers various fixes on different levels for you to troubleshoot.