Dell XPS laptop, Windows 7, came with preloaded Windows Office.
The Excel shortcut has stopped working (After 2 years trouble free).
Now when I click Excel, Word etc a "Windows Installer" pop up box appears with the message "Preparing to install". This stays for several minutes then shows an error of Fatal error during install. Excel doesn't load.
I can run Excel & Word using the Run command (Run then Excel.exe).
I could continue to work like this but it is time consuming and there might be an underlying problem that I am making worse.
How can the shortcut be made to work again?