When one right clicks on a file ones sees an option called " open with " l which links to different programs which can be used to run the same file . In case I want to delete them, how do I go about it?


Click Start, Run, Type REGEDITNavigate to the following key:HKEY_CURRENT_USER \ Software \ Microsoft \ Windows \ CurrentVersion \ Explorer \
FileExtsFind 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 may show up in the Openwith 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 subkeys under:HKEY_CLASSES_ROOT \ SystemFileAssociations \ Simply put, dont remove this part as it affects many file types, not a particular one.