ha ha, how did you get that info to re-format your pc if one
App doesn't work ??
Usually, that's the before last option to re-format, if not last option to solve some issues.
It's easiest to say for someone else's issue with system, than to try to help a guy to repair it.
If he does have issue with some app, then it's recommended to get in touch with that app support (full tilt) or search google ....

just my $.02