Computer System Routine Disk Maintenance Windows® 3.xx

To help optimize the performance of your ChemStation system it is important that you schedule routine maintenance. The following instructions should be used as a part of your routine maintenance schedule.

Deleting .TMP files in Windows®

1. Exit the ChemStation and Windows®, at the MS-DOS® prompt type: EXIT

2. If the system is still at the MS-DOS® prompt enter: SET otherwise repeat step1

3. Using the information displayed, find the line that states: TEMP= An example listing generated by typing the SET command : CONFIG=WFW COMSPEC=C:\DOS\COMMAND.COM PATH=C:\;C:\DOS;C:\WINDOWS;C:\HPCHEM;C:\EXCEL5; TEMP=C:\TEMP *This is the * PROMPT=$p$g windir=C:\WINDOWS

This document is believed to be accurate and up-to-date. However, Agilent Technologies, Inc. cannot assume responsibility for the use of this material. The information contained herein is intended for use by informed individuals who can and must determine its fitness for their purpose. MS-DOS®, Windows® and Windows NT® are registered trademarks of Microsoft Corp. a10085.doc http:// www.chem.agilent.com Page 1 of 4 4. To delete all TMP files from the TEMP directory - at the MS-DOS® prompt type:

DEL \*.TMP Using the previous example, you would type:

DEL C:\TEMP\*.TMP

Deleting files from the ChemStation Instrument TEMP directory

1. Exit the ChemStation and Windows® at the MS-DOS® prompt (C:\) type the following:

EXIT

2. If the system is still at the MS-DOS® prompt type:

DEL C:\HPCHEM\#\TEMP\*.* otherwise repeat step1

Where # = Instrument number; example for instruments #1:

DEL C:\HPCHEM\1\TEMP\*.*

3. When prompted to confirm deleting the files type "Y", !!!!make sure you are deleting files from the correct subdirectory !!!!

4. Repeat steps 1-3 for all other instruments defined on this computer

Ensure that only the required printers are connected to LPT1:

1. Enter the Windows® Control Panel (MAIN GROUP)

Select Printers

2. Check for printers that are presently connected to LPT1 in the Currently Installed Printers area

Example: HP LaserJet 4/4M on LPT1:

This document is believed to be accurate and up-to-date. However, Agilent Technologies, Inc. cannot assume responsibility for the use of this material. The information contained herein is intended for use by informed individuals who can and must determine its fitness for their purpose. MS-DOS®, Windows® and Windows NT® are registered trademarks of Microsoft Corp. a10085.doc http:// www.chem.agilent.com Page 2 of 4 If you have connections to printers that are not required, remove them:

• Select printer to be removed - on printer name • Click on the Remove button, when prompted to confirm remove, select Yes • Repeat the steps above for additional printers

Check Integrity of Hard Disk and File Structure

(Should be done at least once a month)

1. Exit the ChemStation and Windows®, at the MS-DOS® prompt enter the following:

EXIT

2. If the system is still at the Ms-DOS® prompt enter:

VER otherwise repeat step1

3. If the MS-DOS® version is 6.0 or earlier, type:

CHKDSK /F

If prompted, type "Y" to convert any Lost Clusters to files

4. If the MS-DOS® version is 6.2x or later, type:

SCANDISK

Note: DO NOT select to process Surface Scan unless you have at least 20-50 minutes.

This document is believed to be accurate and up-to-date. However, Agilent Technologies, Inc. cannot assume responsibility for the use of this material. The information contained herein is intended for use by informed individuals who can and must determine its fitness for their purpose. MS-DOS®, Windows® and Windows NT® are registered trademarks of Microsoft Corp. a10085.doc http:// www.chem.agilent.com Page 3 of 4 File Structure Defragmentation/Packing (DOS 6.0 or later) (Should be done at least once a month - could take 20-30 minutes)

1. Exit the ChemStation and Windows®, at the MS-DOS® prompt enter the following:

EXIT

2. If the system is still at the MS-DOS® prompt enter

SMARTDRV x- otherwise repeat step1

Where: x = drive designation for defragmentation (Example "C-")

3. At the MS-DOS® prompt enter:

DEFRAG /F /B

The computer will reboot when the defragmentation process is complete.

This document is believed to be accurate and up-to-date. However, Agilent Technologies, Inc. cannot assume responsibility for the use of this material. The information contained herein is intended for use by informed individuals who can and must determine its fitness for their purpose. MS-DOS®, Windows® and Windows NT® are registered trademarks of Microsoft Corp. a10085.doc http:// www.chem.agilent.com Page 4 of 4