Cannot get Itunes to install

Question

I have removed old versions of Itunes, quicktime, bonjour, etc from my computer. I have used windows install cleanup utility. I have even gone into the registry and removed any reference to apple in there. Whenever i try to intall Itunes I get the following error messages.
If I try to download and instal directly from download it says:
Windows has found a Problem within this file.
The file was blocked because it does not have a valid digital signature that verifies its publisher.
If I download the file and save it to my desktop and run it from their, I get the following error:
The publisher could not be verified. Are you sure you want to run this software?
I click on Run...get an hour glass for a few seconds, then nothing. Its like I never ran the program.
Been working on this for hours upon hours, getting very frustrated
btw, this is ona windows XP Pro machine.

Answer 1

Bookwurmee
That's weird, because the install file DOES have a digital signature that says it's from Apple, Inc.
For some reason your PC isn't recognizing it.
This person got rid of that error simply by rebooting thier Router!
http://discussions.apple.com/thread.jspa?messageID=8531048
Are you comfortable backing up your registry and making a change to it? If so, here's another thing to try - if it doesn't work you can restore the registry since you backed it up.
1. click Start, type regedit in the Start Search box, right-click regedit.exe, and then click Run as administrator.
2. Locate, and then click the following key in the registry:
HKEYLOCALMACHINE\Software\Microsoft\Non-Driver Signing
3. Right-click the Policy binary value, and then click Modify.
4. The Value data will appear in the following format:
0000 02
Press DELETE to remove the current value (02 in this example), and then type 0 (the current value will now appear as 00).
5. Click OK, and then quit Registry Editor.
Try the itunes install again.
Message was edited by: Katrina S.