It might happen to anyone: program shortcuts start suddenly opening as Microsoft Word Documents or as other programs and you don’t have any clue how to fix it.
Worry not! Here is a tiny guide, how to fix it.
First you have to open the registry editor to change some entries:
As soon as you have opened the registry editor you have to navigate to the following entry:
Arrived there, delete all keys except for “OpenWithProgids”.
This should ultimately delete all custom made preferences and reset your *.lnk shortcuts to default settings.