PC Card ATA Flash Disk may not work after resume from hibernation on Windows Vista and Windows 7
Windows Vista may fail to enumerate disk devices on an ATA Flash PC Card when resuming from hibernation. This behavior may be seen in the following scenario.
- Insert a USB PC Card into laptop.
- Allow the laptop to enter hibernation.
- While the laptop is hibernated, remove the USB PC Card and replace it with the ATA Flash PC Card.
- Resume from hibernation.
For more information on this issue, including potential causes, workarounds, and resolutions, see: Microsoft KB Article KB974395.