Its doing wierd things - in My Computer when I try to open a folder it wont - try to open another and the first stays highlighted - same for any amount I try. When I open Google (for instance) it takes over the whole page (and some more) clicking anywhere on page produces another google page. Nothing open properly. Did virus check (AVG) - clear - used Windows Defender - no problems.
Any advice - thats not too technical (computer muppet)