Okay. Let's try another clean uninstall/reinstall, but this time we'll take a few additional explicit precautions along the way. Probably best to print out a copy of these instructions, because at one stage of proceedings you won't be able to use a web browser.
Preliminaries
Download and
save a fresh copy of the iTunes64Setup.exe to your hard drive. (Don't run the install on line, and don't run the install just yet.)
http://www.apple.com/itunes/download/
Quit *Safari 4.0.4* if you have it open. It uses Apple Application Support, and so it will interfere with the Apple Application Support uninstall if you have it open.
*Uninstall Phase*
Head into your "Uninstall a program" control panel.
Uninstall iTunes.
Uninstall QuickTime.
Uninstall Apple Software Update.
Uninstall Apple Mobile Device Support.
Uninstall Bonjour.
Uninstall Apple Application Support.
(From this point on until Apple Application Support is reinstalled, Safari 4.0.4 will not launch.)
Next, we'll remove any leftover program files and folders.
(1) Restart your computer.
(2) After the computer restarts, open Local Disk (C:) located in Computer or whichever hard disk your programs are installed on.
(3) Open the Program Files folder.
(4) Right-click the iTunes folder (if it exists), choose Delete, and choose Yes when asked to confirm the deletion.
(4.5) Right-click the iPod folder (if it exists), choose Delete, and choose Yes when asked to confirm the deletion. Click Continue if Windows needs confirmation or permission to continue.
(5) Right-click the Bonjour folder (if it exists), choose Delete, and choose Yes when asked to confirm the deletion. Click Continue if Windows needs confirmation or permission to continue.
(6) Open the Common Files folder.
(7) Right-click the Apple folder (if it exists), choose Delete, and choose Yes when asked to confirm the deletion. Click Continue if Windows needs confirmation or permission to continue.
(8) Open Local Disk (C:) located in Computer or whichever hard disk your operating system is installed on.
(9) Open the Program Files (x86) folder.
(10) Right-click the iTunes folder (if it exists), choose Delete, and choose Yes when asked to confirm the deletion.
(11) Right-click the iPod folder (if it exists), choose Delete, and choose Yes when asked to confirm the deletion. Click Continue if Windows needs confirmation or permission to continue.
(12) Right-click the QuickTime folder (if it exists), choose Delete, and choose Yes when asked to confirm the deletion. Click Continue if Windows needs confirmation or permission to continue.
(13) Right-click the Bonjour folder (if it exists), choose Delete, and choose Yes when asked to confirm the deletion. Click Continue if Windows needs confirmation or permission to continue.
(14) Right-click the Apple Software Update folder (if it exists), choose Delete, and choose Yes when asked to confirm the deletion. Click Continue if Windows needs confirmation or permission to continue.
(15) Open the Common Files folder.
(16) Right-click the Apple folder (if it exists), choose Delete, and choose Yes when asked to confirm the deletion. Click Continue if Windows needs confirmation or permission to continue.
(17) Open Local Disk (C:) located in Computer or whichever hard disk your operating system is installed on.
(18) Open the Windows folder.
(19) Open the SysWOW64 folder.
(20) Right-click the QuickTime file (if it exists), choose Delete, and choose Yes when asked to confirm the deletion. Click Continue if Windows needs confirmation or permission to continue.
(21) Right-click the QuickTimeVR file (if it exists), choose Delete, and choose Yes when asked to confirm the deletion. Click Continue if Windows needs confirmation or permission to continue.
(22) Right-click the Recycle Bin and choose Empty Recycle Bin.
*Reinstall phase*
Restart the PC. After the PC restarts, do not open any applications. Disconnect from your network and/or the internet. Now switch off
all your security software (firewall, antivirus, antispyware).
Now start the install by right-clicking the iTunes64Setup.exe file you downloaded earlier, and selecting "Run as administrator".
Reenable all security software prior to reconnecting to your network and/or the internet.
Does that install go through any better for you?
