Please read: Remember to click the Accept button ONLY once your issue is resolved. If the first answer does not work, just REPLY to me and we will continue.
Sounds exactly like a rootkit virus. Follow my steps below for removal.
So you don’t lose me on a restart, I recommend setting up your JA account. Click My Account on the top right, then Edit Password. Click Save Changes once finished. To return to me, either bookmark/favorite this page, or go to http://www.justanswer.com and click My Questions at the top right. If you don’t see My Questions, you should see Login in which you can sign in with your email and the password XXXXX just created.
Restart your computer into safe mode with networking. To do this, restart the computer. Immediately following the splash screen (First screen you see, might say dell/hp depending on manufacturer) start tapping the F8 key. When done correctly, you'll get advanced startup options.
Select safe mode with networking.
From safe mode with networking, or before you boot to safe mode with networking, click this link and download the file.
Install it (Malwarebytes), its free so don't purchase it. Run a full system scan. When completed, click Show Results and then click Remove Selected and restart if prompted. That should get rid of the infection.
Let me know the results when completed, might take take a bit to do the scan