Nothing guarantees it. What you could do is run Hijackthis and post the log on one of the forums listed in the last link in my signature (lower down that page) and have them take a look at what's going on.
Hi guys, first time post. I'm afraid I have somehow managed to pick up this West Yorkshire Police Ukash virus the other day. It doesnt seem to have encrypted my files, but I haven't been able to locate it in the registry as many videos and walk throughs have advised. Am currently going to try what mdb1974 advised, hoping we have a similar varient of the virus.
malwarebytes found it and killed it seemingly. It could be found in the registry under the Run section of Current User in Windows, but I wasn't 100% sure that was the culprit. Things looking ok now, going to do a few scans and none of the files are encrypted.