I have Windows 7 , all windows updates done automatically. AV up to date, Malwarebytes run and clean. This last week when I have loaded programs although they are showing in the All Progrmas list the folders are empty and I cannot therefore open them. When I go to Explorer the folders are there so they seem to have loaded but it is proving difficult if not impossible to open them. All the early program entries are still OK. Any help welcome.