Apparently some Windows users are encountering problems after installing last Tuesday’s Microsoft updates. One of the updates, KB2823324 (aka MS13-036), is causing system errors on some Windows computers.

Affected users are advised to follow the instructions in a new bulletin, KB2839011 – You receive an Event ID 55 or a 0xc000021a Stop error in Windows 7 after you install security update 2823324.

The original update has been pulled from the Windows Update site, and is no longer being pushed out to Windows computers with Autoupdate enabled.

Update: Microsoft is now saying that the update in question (KB2823324) should be removed from ALL Windows 7 computers. See bulletin KB2839011.