Quote: Originally Posted by rbmorse
Thanks for the response.
Regedit gives me an "access denied" message. Tried again starting regedit.exe with "run as administratior" option with same result.
I can change permissions for some items, including the APPIDs on either side of this one in regedit's list, but not this particular APPID.
Two explanations why you can't change permissions:
1.You are not the owner of this key and first you have to takeownership of key
in above example the owner of key is TrustedInstaller not you.Probably in your case the owner of this key is TrustedInstaller or System,not you or Administrators group and thus this problem.You can only change permission if you or Administrators group are owner.So you have to takeownership of this key lecture:Take Ownership of file - Vista Forums
2.Another reason wouldbe restriction relate with inheriting permissions from object's parrents.Make sure the below options are unchecked (image)