I dont even have that much coin i only have like 0.06 left right now afrer
İ bought some stuff . Would a formating help? I dont want to yse linux it sounds complicated buy i have win 7 and this could be great time to upgrade to win 8 . I am not sure if that would help tough would it? The thing in mind is they couldnt get to my coins but what if they have something else?
I think it would possibly fix any malware you have and may buy you some time. The problem with winxx is that you don't know what it can do. It is closed source and so you don't really own it. Using linux is not a guarantee either. But being open source it can be trusted more.
If Microsoft has a backdoor for whatever reason and the black hat hackers find out... All windows computers would be at risk. The amount you have is not a huge incentive, but since stealing BTC is a crime one
will get away with it is still a risk.
Check out Ubuntu. It's free and you can install it along with windows and select it at boot up. It is no harder to use than windows. About as different as Mac is from windows.
http://www.ubuntu.com/