Suggest that you boot in safe mode
http://www.howtogeek.com/...e-mode-on-windows-8-the-easy-way
Then go back to a restore point
How to refresh, reset, or restore your Windows 8.1 PC
Once you've done that, use Theo's virus stuff.
Je suis Charlie. Je suis Ahmed. Je suis Juif.
Life, don't talk to me about life - Marvin the Paranoid Android
"Science adjusts it's views based on what's observed.
Faith is the denial of observation so that Belief can be preserved."
- Tim Minchin, in his beat poem, Storm.