Critical update cause loop

HP P2-1134
OS Version: Microsoft Windows 7 Home Premium, Service Pack 1, 64 bit
Processor: AMD E-450 APU with Radeon(tm) HD Graphics, AMD64 Family 20 Model 2 Stepping 0
Processor Count: 2
RAM: 3686 Mb
Graphics Card: AMD Radeon HD 6320 Graphics, 384 Mb
Hard Drives: C: Total - 465640 MB, Free - 223881 MB; D: Total - 11196 MB, Free - 1342 MB; L: Total - 152617 MB, Free - 142152 MB;
Motherboard: PEGATRON CORPORATION, 2AD1
Antivirus: avast! Antivirus, Updated and Enabled



Has anybody heard of a just released Windows Critical Update for windows 7 causing a computer to go into a loop after installing?
I do backups every night. So Thursday night I went to bed leaving the computer running.
In the middle of the night I got up to discover the computer was “configuring windows” I sat and watched it for a bit.
It would finish “configuring windows” instead of going to the logon window screen it would restart and go back to the “configuring windows”. I shut the computer down.
The next day I did a “system restore” the only restore point was from just before a bunch of Windows Critical Updates
Restored everything was fine.
That evening before going to bed I decided to install the Critical Updates Did that the result was the computer again went into a loop “configuring windows”
Did another system restore to again just before the updates from the night before.
So the problem is in windows recent updates.
Anybody hear of this problem or suggestion who I should contact