Microsoft seem to be having a poor time with their monthly Windows updates in 2013. August's monthly updates included several security patches including one for the kernel - KB2859537 - which seems to be causing a few problems.
Reported symptoms include application freezes and BSODs, but many systems are are unaffected.
Based on superficial evidence, problems
may be affecting systems that have:
- Windows 7
- IE10 installed
- more than 3 cpu cores
- Avast antivirus installed
- third-party apps that directly alter the kernel.