All done 
Many thanks for your help Oldman. All seems to be running ok. To be honest all I noticed before was Avast popping up with a virus warning. Just out of interest what were all these nasties doing to my system?
John
Sorry, I didn’t see your reply.
Most of it was vundo, and it was probably getting ready to download more of it’s friends and swamp you in ad popups.
You’re welcome.