Undo Drive Data Is Discarded When You Switch Secondary Hard Disk Images Between Virtual Machines (825410)

WORKAROUND

To work around this problem, use one of the following methods.

Method 1: Turn Off Undo Drive

Note This method turns off Undo Drive for all hard disk images that are used by the virtual machine.

1. In the Virtual PC List, select the virtual machine that you want to modify.
2. Click Settings.
3. Click Undo Drives, and then click to clear the Enable Undo Drives check box.
4. Click OK.

Repeat these steps for each virtual machine that shares the same secondary drive.

Method 2: Make a Backup Copy of the Secondary Hard Disk Image

You can make a backup copy of the secondary hard disk image by using the backup program of your choice. You can also make a backup copy of the secondary hard disk image by following these steps:

1. Locate the Virtual PC hard disk image on your Mac hard disk.
2. Press and hold Control, and then click the hard disk image icon.
3. Click Duplicate.

If you want to, you can rename the copy of the hard disk image icon.
For additional information about how to create duplicate hard disk images, click the following article number to view the article in the Microsoft Knowledge Base: