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ITsVISTA KB-Link: KB971128

Stop error when multiple third-party network drivers are installed on a computer that is running Windows Server 2008 or Windows Vista: “0x0000007F” or “0x0000008E”

On a computer that is running Windows Server 2008 or Windows Vista, the system generates one of the following stop error codes and then restarts:

0x0000007F (UNEXPECTED_KERNEL_MODE_TRAP)
0x0000008E (KERNEL_MODE_EXCEPTION_NOT_HANDLED)

This problem typically occurs when multiple third-party network drivers are installed on the computer. For example, this problem may occur when the following drivers are installed:

  • VPN client drivers
  • Firewall drivers
  • Modem/ISDN drivers
  • Other network security filter drivers
There is a download that resolves this issue. See Hotfixes for details.
64-Bit Download: Contact Microsoft

For more information on this issue, including potential causes, workarounds, and resolutions, see: Microsoft KB Article KB971128.

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