Unfortunately I have managed to pick up a virus on my computer. It is the Metropolitan police e-crime unit virus, a ransomware which has locked my computer unless I run it in safe mode which I am currently doing.
In order to try to rid my self of this demon I have followed insstructions from the internet however I can only go so far. The infected item, frustratingly, is windows explorer. The instructions I have followed is to start with safe and command prompt, force rename explorer so that I can use it, then download and replace explorer with a new non-infected version. However when I come to replace it I am told I cannot. I give the neccessary permissions as the computer administrator but then it blocks me from doing so anyway.
My question therefore is whether it is safe or even possible for me to use command prompt to force delete explorer and then re-install it from a USB drive onto which I can download a clean version.
Thankyou for any help with this matter, I am becoming a big red frustrated angry ball of rage!

Mass