|unfortunately response #1 does not realize how much is on a personal computer, progs, pics, docs, etc (which may take ages to reload ...IF....the progs are available.)...there are ways to remove that ransomware.|
A great way to start is to download all 3 of these progs to a thumb drive on a different PC and then load them to the problem PC in safe mode.
Follow these in the EXACT order listed even if you have run malwarebytes already:
2- tdss killer
Some HELP in posting on Computing.net plus free progs and instructions 7 Golds