Yeah, I deleted my old restore points.
I've still got to read the links you posted, but I'll definately get round to this tomorrow.
My only outstanding question is what other application would you recommend that I run along with mcAfee?? (seeing thought this was what I originally had installed, but for some reason was not detecting wserv32.exe and csrssd.exe)
Apart from this, many, many thanks for your advice, patience and knowledge. I'm definately more focused on protecting my pc after going through this.
Thanks again!
