A Utility to Unassociate File Types in Windows 7 and Vista


Here is a utility that helps you unassociate a file type quickly in your Windows Vista or Windows 7 computer without the need to edit the registry manually. Windows 7 & Vista do not provide a GUI option to unassociate file types, thus the need arises for such a tool below.

Unassociate file types in Windows 7 & Windows Vista

  • Download unassoc.zip and save to Desktop
  • Extract the contents to a folder and run the file unassoc.exe
  • Select the file type from the list
  • Click Remove file association (User)

The user-specific association for the chosen file type is now removed from the registry. The system will now use the global file association settings.

More information

CommandDescription
Remove file association (User)Removes the user-specific association (via the Open With dialog) for the chosen file type. Note that this button will remain dimmed if there is no user-specific association for the file type.
Delete file typeDeletes the file type completely from the registry. Both the user-specific and global associations for the chosen file type is removed.
Refresh listRefreshes the list box contents.

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164 Comments

  1. Mike
    said this on Tuesday, October 21st 2014 8:17 pm

    WOW!!!
    Saved me tons of time.
    Thank you for the fix. Excellent tool!!

  2. Avizo kuotsu
    said this on Thursday, October 2nd 2014 3:11 pm

    hey dude, thank u so much.it really worked. i really appreciate your worked. hope to get some answer like this again….lol.

  3. Richard Mccray
    said this on Sunday, September 28th 2014 4:38 pm

    Really appreciate the “fix” for that Lnk problem I had. Al these years and I have yet to run across that one….. Any program I wanted to start I had to go into EXPLORER, click the C:\ drive, expand PROGRAM FILES, expand the program I wanted opened, then find the executable file for that program and then click that….. it was a big pain in the you know what!! Guess I could have ventured back into the “DOS” days and created a few “BATCH” files, huh? Might have been fun…thanks again!!!

  4. Samson Huvaing
    said this on Thursday, September 18th 2014 6:17 pm

    Thanks so much, this is the best way and I appreciate it very much.

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