I removed all infections from both of the scans, and now when I double click on any programmes it comes up with either 'application not found' or 'open with' and an icon of internet explorer. If I then click on the IE icon, it opens a blank browser page and another box with 'open with.' After clicking on this IE icon, another box with a file security download that never runs. This happens repeatedly now and I can only access the internet and oenoffice via run as administrator but all other programmes are still not found.