User Guide

Microsoft^�-Updated ATAPI Driver for Windows NT^� 4.0: Dell^™ Dimension^™ Vxxx and Vxxxc Systems

Installing the Microsoft-Updated ATAPI Driver | Removing the Microsoft-Updated ATAPI Driver

Installing the Microsoft-Updated ATAPI Driver

NOTE: If Windows NT 4.0 is reinstalled, the Microsoft-updated ATAPI driver must also be reinstalled. To complete the driver installation, you must have a mouse connected to the system and Windows NT 4.0 must already be installed on the hard-disk drive connected to the primary EIDE channel.

To reinstall the Microsoft-updated ATAPI driver, perform the following steps:

1. Start the Windows NT operating system. If you are already running Windows NT, close any open documents or application programs.
2. If you have not already done so, make a diskette set of the ATAPI driver by clicking Dell DiskMaker in the Dell Accessories folder.
3. Insert the Microsoft-Updated ATAPI Driver for Windows NT 4.0 diskette in drive A.
4. Click the Start button.
5. Click Run, type a:\setup.bat in the Run window, and then click OK.
   A black screen quickly appears and disappears, indicating that the driver file has been loaded. Setup automatically saves the existing atapi.sys driver as atapi.000 and loads the new driver into the system32\drivers subdirectory in the Windows NT directory.
6. Remove the diskette from drive A. Then restart the computer.

NOTE: To enable or disable DMA while using the Microsoft-updated ATAPI driver, run dmacheck.exe from \support\utils\i386 on the Microsoft Windows NT Service Pack 3 CD.

Removing the Microsoft-Updated ATAPI Driver

To remove the Microsoft-updated ATAPI driver, follow these steps:

1. Start the Windows NT operating system. If you are already running Windows NT, close any open documents or application programs.
2. Use Explorer to open the system32\drivers subdirectory in the Windows NT directory.
3. Rename the existing atapi.sys file to atapi.bak.
4. Rename the atapi.000 file to atapi.sys.
5. Restart the computer.