Cant Run .exe files

[Martin]

After updating our Antivirus (norton) we cannot open any
programmes. Windows cant see the .exe files. We can run an
application by opening a n application file first

 

[Steven L Umbach]

Try booting into safe mode to see if it helps and if it doesn't uninstall Norton
while you are there to see if that remedies the situation. If that does not work, I
would suggest trying a repair install using fast repair. If still a no go, do a
upgrade installation where you install Windows from install cdrom while running it
and select "upgrade". It will install the operating system on top of itself but you
will have to reinstall service pack and critical updates. --- Steve