QuickTime will not uninstall

I'm currently going through the same problem with 32bit win7 version. I tried everything to get rid of quicktime but now I can't even open iTunes because it says I don't have quicktime and iTunes requires it. But when I try to install the new iTunes 10.1 or even quicktime by itself it says I already have a newer version installed.

I'm close to losing my mind over this and I can't believe no one has an answer.

"A newer version of QuickTime is already installed. This installation cannot proceed while the newer version of QuickTIme is installed."

That's usually trouble with the QuickTime.msi. Unfortunately, these sorts of msi-related troubles have gotten more complicated to deal with ever since Microsoft pulled the Windows Installer CleanUp utility from their Download Center on June 25. First we have to find a copy of the utility.

Let's try Googling. (Best not to use Bing, I think.) Look for a working download site for at least version 3.0 of the Windows Installer CleanUp utility. After downloading the utility installer file (msicuu2.exe), scan the file for malware, just in case. (I use the free version of Malwarebytes AntiMalware to do single-file scans for that.)

If the file is clean, to install the utility, doubleclick the msicuu2.exe file you've downloaded.

Now run the utility ("Start > All Programs > Windows Install Clean Up"). In the list of programs that appears in CleanUp, select any QuickTime entries and click "Remove".

Quit out of CleanUp, restart the PC and try installing iTunes again. Does the install go through properly this time?

(If you do find a clean download site for the correct version of CleanUp, please don't tell me where it is. Without wishing to sound paranoid (although I grant it does sound paranoid), there is a non-zero chance that posting links to download locations for the utility here at Discussions leads to that download location being shut down.)

Windows Installer CleanUp utility Doesn't seem to work on windows 7. I just get a script error when I try to run it.

I just get a script error when I try to run it.

Which particular Script error, Aragrist? (Precise text, please.)

Script:
C:\Users\Aragrist\AppData\Local\temp\IXP000.tmp\StartMsi.vbs
line: 17
Char: 1
Error: Permission denied
Code: 800A0046
Source: Microsoft VBScript runtime error

I pulled the file off many different sites and it says the same thing each time I try to run it. I even pulled an older version but that one simply said that it cannot run on windows nt.

Code: 800A0046

🙂 perfect, thanks.

With that one, even though you've got a 7 rather than a Vista, try installing CleanUp by doing a "Run as administrator" as per the following document:

[Error "800A0046 - Permission Denied" when installing the Windows Installer Cleanup Utility in Windows Vista|http://www.winhelponline.com/articles/170/1/Error-800A0046---Permission-D enied-when-installing-the-Windows-Installer-Cleanup-Utility-in-Windows-Vista.htm l]

Alright I got Windows Installer CleanUp utility running. I removed quicktime and ran iTunes 10.1 setup. Success!!!! iTunes 10.1 is up and running quicktime reinstalled with the proper version number.

Good work b noir. You just saved my sanity.

🙂 excellent news. Glad you're up and running again.

🙂 Excellent news, cindy. Glad things are working better for you too.

Okay - now me, Karen, will reboot. Keep your fingers crossed and hope I have success as Cindy.

Hopefully this will help people out who have no luck manually removing Quicktime or using the Microsoft Cleanup Utility.

When you try to install Quicktime it references a REGISTRY key called HKEY CLASSESROOT\Installer\Products\5B09BD67-4C99-46A1-8161-B7208CE18121 WinXp or
E7004147-2CCA-431C-AA05-2AB166B9785D Win 7.

This is where it reads what version you have currently installed. No where is there any reference to Quicktime in it. It took me a good 2 hours of hacking up and logging the install to get it to finally show me what it was trying to do. Delete these keys and search for any other. I can confirm that the key does exist on both Windows 7 and XP.

There is also a folder with the same name in C:\Windows\Installers\{5B09BD67-4C99-46A1-8161-B7208CE18121} or {E7004147-2CCA-431C-AA05-2AB166B9785D} that can be deleted.

After this you should have a smooth clean install of either Quicktime or Itunes