Security Blues

I’ve been experiencing some trouble with the latest two security updates from Microsoft.
The offenders, (KB956841 and KB956803) work fine on a Compaq desktop running XP Pro. When installed on a Gateway desktop running XP Media Edition, the machine hangs when trying to start Windows after the required re-boot. I manage to get Windows to start in safe mode and restored to a time previous to installation and the machine works fine.
The security updates are related to a vulnerability that could allow malware to elevate its privilege level. As per Microsoft documentation:

A local attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

The only known issue is some negative interaction with Zone Alarm. I found only one reference to a Laptop that hangs on reboot, I’ll keep looking.

Update In the process of restoring and trying again, KB956803 somehow got installed. I will not try KB956841… wait for the next Service Pack.

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