Can't install itunes 64 bit on Windows 7 64 bit home premium.

Hello there!

Please post us the exact error message so we could help you.

Windows Installer Errors troubleshooting:

You may follow the steps from the below link: How to troubleshoot problems that may occur when you install, uninstall, or upgrade a program on a Windows-based computer: http://support.microsoft.com/kb/2438651

Step 1: Check the Windows Installer Service.

1. Click Start Orb, in the start search box, type Services and press Enter.
2. Scroll down and find the Windows Installer.  Double-click “Windows Installer” in the Services list.
3. On the General tab, make sure the service is started under “Service status”.
4. If the service is not already running, under Service status, click Start, and then click OK.

Step 2: Unregister and re-register the Windows Installer

1.  Click Start Orb, in the start search box, type MSIEXEC /UNREGISTER, and then click OK . 

2.  Click Start Orb, in the start search box, type MSIEXEC /REGSERVER, and then click OK . After you run this command, the operation is complete.

3. Now, try your installation again. 

Step 3: Clean any pending installations

Check the following registry key and clean any entries in the key that you find:

Go to the Start Orb, type in Regedit and select enter.

If you get the User Account Control dialog box that states, Do you want to allow the following program to make changes to the is computer?, Click yes.

Modifying REGISTRY settings incorrectly can cause serious problems that may prevent your computer from booting properly. Microsoft cannot guarantee that any problems resulting from the configuring of REGISTRY settings can be solved. Modifications of these settings are at your own risk.

Scroll to: HKEY_LOCAL_MACHINE \Software\Microsoft\Windows\CurrentVersion\Installer\InProgress

Check the following registry key and clean any entries in the key that you find:

HKEY_LOCAL_MACHINE \System\CurrentControlSet\Control\Session Manager\PendingFileRenameOperations

Step 4: Check the permissions

Verify the System has Full Control on the following keys:

HKEY_LOCAL_MACHINE \Software\Microsoft\Windows\CurrentVersion\Installer

Next, restart your computer and try again.

If still having problems, then create a new Administrator User account and see if the problem could be a corrupt user account.

Please reply back and let us know if this helps with your Windows Installer Error.

Sincerely,

Marilyn

Dear Marilyn,

I have been trying to install the Itunes 10.4.1 for a week now.  It all started when I tried to upgrade to this version, but the installation never finishes. Per some support document on the Apples Support website,  I uninstalled Itunes from my system, together with Bonjour and Quicktime.  Ever since then, I cannot install Itunes and so my system no longer can access the Itunes store nor can I sync my iPhone.

Each time, the installation will go all the way to 95 %  downloaded, and then it will hang.  I have tried all the steps you wrote in your response, but nothing works.  I have uninstalled Norton360 and also Microsoft Security Essentials,  but the result is the same.

I have a Dell laptop running WIndows 7 64 bit.  I have tons of memory as well as disk space.

Any help you can give me would be much appreciated.  I can truly say I am very depressed now.

Thank you.

Amy

i got same problem too...

it says "the windows intaller  service could not be access.This can occur if the windows installer is not correctly installed. contact your support personal for assistance.