What I would like to know is as a last resort I could restore my PC to the factory Settings (then I could restore with a disc Image) but does restoring to factory settings restore everything ?? including like the MBR and startup options. I have just realised that I did upgrade to W8 at the beginning of the year but did not like it and restored back to W7 with a disc image I took before installing,I am fairly savvy understanding windows but things like MBR i'm lost.
What is ransomware and how do I protect my PC from Petya?