There is a problem with this windows installer package. A program required for this install to complete could not be run. contact your support personnel or package vendor.

I also dont have the apple update software

Okay. We should check to see if it's installed correctly then.

If you're using XP, go into your Add or Remove programs control panel. Can you see Apple Software Update in the list of programs? if so, select Apple Software Update, click "Change" and then click "Repair".

If you're using Vista or Windows 7, go into your Uninstall a program control panel. Can you see Apple Software Update in the list of programs? If so, select Apple Software Update and click "repair".

If you were able to repair, and ASU now appears under "All Programs" in the Start Menu, try another iTunes install. Does it go through properly this time?

All i have in my uninstall a program is Apple aplication support, Apple Mobile Device support and Bonjour.

Just in case, let's try a standalone AppleSoftwareUpdate.msi install.

Download and save a copy of the iTunesSetup.exe (or iTunes64setup.exe) installer file to your hard drive:

http://www.apple.com/itunes/download/

Download and install the free trial version of WinRAR:

http://www.rarlab.com/

Right-click the iTunesSetup.exe, and select "Extract to iTunesSetup". WinRAR will expand the contents of the file into a folder called "iTunesSetup".

Go into the folder and doubleclick the AppleSoftwareUpdate.msi to do a standalone ASU install.

(If it offers you the choice to remove or repair, choose "Remove", and if the uninstall goes through successfully, see if you can reinstall by doubleclicking the AppleSoftwareUpdate.msi again.)

Does it install (or uninstall and then reinstall) properly for you? If not, what error message do you get? (Precise text, please.)

Hmmmm.

Download the Windows Installer CleanUp utility from the following page (use one of the links under the "DOWNLOAD LOCATIONS" thingy on the Major Geeks page):

http://majorgeeks.com/download.php?det=4459

To install the utility, doubleclick the msicuu2.exe file you downloaded.

Now run the utility ("Start > All Programs > Windows Install Clean Up"). In the list of programs that appears in CleanUp, select any Apple Software Update entries and click "Remove", as per the following screenshot:

Quit out of CleanUp, restart the PC and try another iTunes install using an iTunesSetup.exe downloaded from the Apple Website:

http://www.apple.com/itunes/download/

Does it go through properly this time?