If you receive the error message “The operating system is not presently configured to run this application” when opening Office and other applications, the ...
EDIT: It did - changing that setting back to "AHCI" resulted in a, "This operating system failed to start", message when I tried to boot XP. Changing the BIOS back to the "IDE" setting didn't fix that ...
Ensure that you have installed the latest Windows Updates and Device Drivers. Go to Windows Settings > Update, and check if an update is available. If yes, then install it. When it comes to drives, ...