i don't know what i've done but most of the thumbnails that opened various programs are changed to adobe reader marked pdf. on pointing the thumbnail where the old one was, it labels it right but doesn't execute. for instance: i click on on what was explorer but the only thing i get some sort of justification for not following up. i was wondering whether i corrupted most of the files. the files that are not affected are those which adobe reader was used. the warning i get is: adobe reader could not open 'mathematica.exe' because it is either not a supported file or becauser the file has been damaged (for example, it was sent as an email attachmentand wasn' t correctly decoded). it'll be impossible to get any information if i can't get into the web, as i can't open explorer!
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