don't uninstall your goPro software!
 

there appears to be a documented problem of the uninstall process deleting extra DLL's
New GoPro Studio - Error - GoPro Forum, Classifieds and Support

I hit this a week ago and it's been a nightmare - EDIUS won't run and neither will COREL movie studio.

I've upgraded EDIUS and that seem to work but I don't want to have to do that for every piece of software effected by this uninstall.