[Question Deleted]

Question Deleted.

So, I ran scans with Microsoft Security Essentials
Installing multiple AV programs on a computer will result in all kind of mysterious windows errors an false positive detections

Here is why

Never install two antivirus (see reply from quietman7)
http://www.bleepingcomputer.com/forums/index.php?s=7c8217673a726b92cfc91ecfd4294a29&showtopic=260844&view=findpost&p=1441638

so start with uninstalling one

That means unless you are infected with a Rogue…the Fake MSE…like this

Remove Security Essentials 2010 (Uninstall Guide)
http://www.bleepingcomputer.com/virus-removal/remove-security-essentials-2010

Remove the Fake Microsoft Security Essentials Alert Trojan and AntiSpySafeguard
http://www.bleepingcomputer.com/virus-removal/remove-fake-microsoft-security-essentials-alert

Sounds like you have fake spypro variant.Try running something like McAfee stinger which is a free stand alone application ,that specifically deals with the fake type (including spypro) malware.
Disconnect from net and disable your avast ,and run stinger in safe mode.
http://www.mcafee.com/us/downloads/free-tools/how-to-use-stinger.aspx
Some of the spypro malware can affect your system files so its possible some of them are corupted.
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