Q: When I updated itunes to the latest version, my itunes stopped working all together.  I cannot re-download it, start it up, nothing.  I have windows XP.

Go to Control Panel > Add or Remove Programs (Win XP) or Programs and Features (later)

Remove all of these items in the following order:

• iTunes
• Apple Software Update
• Apple Mobile Device Support (if this won't uninstall move on to the next item)
• Bonjour
• Apple Application Support

Reboot, download iTunes, then reinstall, either using an account with administrative rights, or right-clicking the downloaded installer and selecting Run as Administrator.

The uninstall and reinstall process will preserve your iTunes library and settings, but ideally you would back up the library and your other important personal documents and data on a regular basis. See this user tip for a suggested technique.

Please note:

Some users may need to follow all the steps in whichever of the following support documents applies to their system. These include some additional manual file and folder deletions not mentioned above.

HT1925: Removing and Reinstalling iTunes for Windows XP

HT1923: Removing and reinstalling iTunes for Windows Vista, Windows 7, or Windows 8

tt2

I have the same problem running Windows 7. Apple Support tried to help, resorted to manual removal of files but Bonjour and one other won't delete. Message says the folder or a file in it is open in another program. Tried rebooting several times. Any suggestions?

Reboot into safe mode and try from there.

tt2

Mismo PROBLEMA!!!

it was working fine for years on my PC with Windows 7, after the last update it doesn't work anymore, an error keep popining up saying: "An application has mad an attempt to load the C runtime library incorrectly.  Please contack the applications support team for more information"

I tryed already unistalled iTunes an reinstalled, didn't work I also try restar my windows to a previus starting date.

haven't tryed on safe mode.

it worked from somebody?

please advice

Unfortunately uninstalling and reinstalling, or repairing the current copy of iTunes alone doesn't fix the problem....

My earlier post to this thread should help you resolve the issue.

tt2

Apple have released a new support article regarding the issue. I've a link to it and some additional advice here:

Troubleshooting issues with iTunes for WIndows updates

I'm currently running experiments with the official advice to see if there are any surprises. In the meantime what have you tried so far? Have you been able to remove all the iTunes components and clean the suggested folders?

tt2