Reinstalling a software program is one of the more basic troubleshooting steps available to any computer user. Reinstalling a nonworking program is a valuable but often overlooked step when trying to solve a software problem.
By reinstalling a software title, be it a productivity tool, a game, or anything in between, you replace all the program files, registry entries, shortcuts, and other files needed to run the program.
If whatever problem you're having with the program is caused by corrupt or missing files (the most common cause of software problems), a reinstallation is very likely to solve the problem.
Uninstalling and then reinstalling a program this way is really pretty easy but the exact method differs a bit depending on the Windows operating system you happen to be using: