When one right clicks on a file ones sees an option called “open with” which links to different programs which can be used to run the same file. In case if you want to delete some of them then how can u do? here comes the trick
- Go to Start-> Run-> Regedit
- Navigate to the following
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts
- Find the extension you wish to edit and click on the [+] sign to expand OpenWithList (in the right pane, you will see a list with the programs, like “paint.exe”, “notepad.exe”, etc).
- Use the File, Export option to back up the key.
- Click on the one you wish to delete and press the delete button.
- Still some items mays how up in the open with lists, which comes from the HKEY_CLASSES_ROOT registry key, which is common for all the user profiles. you may remove the entries from the following key:
HKEY_CLASSES_ROOT\.xxx\OpenWithList (where xxx is a file extension.)
- With that removed, windows may still show some default open-with lists.
- Depending upon the file type, the open-with listing is generated from the sub keys under:
HKEY_CLASSES_ROOT\SystemFileAssociations\<Type>\
- Simply put, don’t remove this part as it affects many file types, not a particular one.
