Okay, downloading the last of the updates, also MSE found a virus I'll post the information while I remove it from my PC, so that you can decide what to make of it.
Virus:VBS/Bomgen.H
Category:Virus
Description: This program is dangerous and replicates by infecting other files.
Recommendation: Remove this software immediately.
Microsoft Security Essentials detected programs that may compromise your privacy or damage your computer. You can still access the files that these programs use without removing them (not recommended). To access these files, select the 'Allow' action and click 'Apply actions'. If this option is not available, log on as administrator or ask the local administrator for help.
Items:
file:C:\WINDOWS\System32\config\RegBack\SOFTWARE
Just in case this could be a problem of the BSOD