Windows Hangs After Installing TCP/IP with WDCDRV.386

• Microsoft Windows for Workgroups version 3.11

SYMPTOMS

After you exit to MS-DOS, your computer stops responding (hangs) when you try to restart Windows for Workgroups version 3.11.

CAUSE

The system is configured with both the Microsoft protect-mode TCP/IP protocol and the Western Digital 32-bit disk access driver (WDCDRV.386). Version 2.5 of this driver does not work properly with the Microsoft protect-mode TCP/IP protocol.

RESOLUTION

Use any one of the following methods to correct the problem:

Disable 32-Bit Disk Access

To disable 32-bit disk access, follow these steps:

1. Start Control Panel.

2. Double-click the Enhanced icon.

3. Click the Virtual Memory button.

4. Click the Change button.

5. Clear the Use 32-Bit Disk Access check box.

Modify the SYSTEM.INI File

Follow these steps to modify the SYSTEM.INI file:

1. Use any text editor (such as Notepad) to open the SYSTEM.INI file.

2. Add the following lines to the end of the SYSTEM.INI file:

         [wdcdrv]
         DMAFlag=OFF
         BlockingFactor=0
         ScatterGather=OFF
   

3. Save the file and then close it.

4. Exit and then restart Windows.

Use an Updated Driver

Contact Western Digital for an updated 32-bit disk access driver.