Welcome
The cause is another of the fancy spyware detectors. Uninstall your detector, use Microsoft Security Essentials for real time protection and use Malwarbytes for a once a week scan.
Here is the cause of your problem
Stflt.sys file descriptionProductname:Spyware Terminator 2012 Description:Spyware Terminator 2012 driver Company:Windows (R) Win 7 DDK provider