Ai dat peste cap windowsu'
Trebuie un repair sau in cel mai rau caz o schimbare de windows.
Gasesti aici un fix pentru EXE si LNK (shortcut-uri) http://www.thewindowsclub.com/fix-unable-to-open-exe-lnk-files-windows-7
Da un System Restore pe o data precedenta. Foloseste google -
http://www.sevenforums.com/......g-box.html
http://answers.microsoft.com/......209c62e9be
http://answers.microsoft.com/......e1fc87c60f
http://answers.microsoft.com/......20305c441e
http://support.microsoft.com/kb/555067