After installing a ton of programs, I noticed that everything wants to be part of my “Open With” dialog when right-clicking the desktop. 90% of the time, I never use any of these, but it’s cluttered none the less.

To remove these items, open regedit and make your way to this:

HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionExplorerFileExts

Search for the file extension you want to remove by expanding the “OpenWithList”. In the right-pane, highlight the program that you want disassociated and hit delete. Do this for each then close regedit and you’re done.

Should you accidentally delete a key, no problem. Just associate it by adding it back with the “Open With” in the popup dialog box.