Can't Update Quicktime Player?

I get a notice that there are updates for Quicktime, so I tell it to go ahead and it always fails with an error that says Getlasterror 5:Today I decided to fix this so I did some research and found that it's a fairly common problem.I didn't find any really concise answer, but Microsoft said to install a registry entry that adds the command "Grant Admin Full Control" to the right click drop down.I did that, it will be interesting to see if that works for some other access problems.However it didn't do anything for Quicktime.It will not let me uninstall the old version and it won't let me install the new version.I always get the Getlasterror 5, error which is caused by Windows not allowing the process to complete.Any one else run into this.I have seen posts that say to physically delete the Quicktime software but I don't really want to do that, I'm afraid I'll end up with no working version.I'm open to suggestions, this isn't a big deal, because the older version is installed and working.The same thing happens when trying to update ITunes, so it's and Apple, Windows thing.These over the top security issues are the only thing that really bugs me about Windows 7, I've been dealing with these ever since I started running it in beta.