This might be a root kit,One in general(Zero Access). If you could get your MAch. into Safe mode with Networking
and then go online to Anti-rootkit utility TDSSKiller
(SAFE MODE)w/networking:> How to start Windows in Safe Mode or Safe Mode with Networking - ESET Knowledgebase
about mid page click on the download for the .zip & open folder
you may need 7-zip or some comparable to open zip files.
Once extracted you will have a folder open with a read me file and the Tdskiller.exe file/double click to run.
then you will be prompted to update click update.
let it go to update and open update, then run scan/
hopefully you can find and heal if it is a root kit.
Please respond if you try this option./