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:

0×0000007F (UNEXPECTED_KERNEL_MODE_TRAP)
0×0000008E (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