Upgrading from Oracle VM PV Drivers for Microsoft Windows Release 3.2.2 to Release 3.2.3, and then uninstalling Release 3.2.3, might cause a fatal system error. This issue might occur on some Microsoft Windows 32-bit versions, such as Microsoft Windows 2008 SP2, Microsoft Windows 7, and Microsoft Windows 8.1.
Workarounds:
Uninstall Oracle VM PV Drivers for Microsoft Windows Release 3.2.2 before you install Release 3.2.3.
If you encounter this issue, restart the system and then use the Oracle VM PV Drivers for Microsoft Windows Release 3.2.3 installation program to completely uninstall Release 3.2.3. You should then uninstall Oracle VM PV Drivers for Microsoft Windows Release 3.2.2 before installing Release 3.2.3.