For someone who can't use the windows installer cleanup utility.

Question

I have been an iTunes user for years and have usually updated to the newest version whenever prompted and have had very little trouble with the program despite always using PCs. However, I recently purchased an iPhone which is fun, but requires the newest iTunes.
I tried to install the new version and received a message which many people have, which said "The feature you are trying to use is on a network resource that is unavailable."
I searched online and found the solution that said to use the Windows Cleanup Utility or whatever, however, my computer barred me from doing this for some reason. Even when I manually attempted to register with the Command Prompt window, I was unable to get the program to work. I tried to fix THIS part, but received another error message which directed me to format my computer, which I am unwilling to do at this time. I don't even want to lose my library but I'm kind of resigned to that at this time.
So what I'm asking is, is there any other way to get this sorted out without the utility package? Any way to direct my computer to where itunes.msi would be on my computer? Is there anyway to fix this, seeing as it seems to be a recurring problem in the installation of this version? Thank you.

Answer 1

+it's essentially telling me I'm not the administrator when not only am I, but I'm the ONLY user on this computer+
Your sig says XPS. I assume that means XP. Your permissions must be corrupt in the registry, even though you are on an admin account. I got this same error when I upgraded my laptop to XP SP3. I had to run a tool from microsoft to fix it.
Scroll down to the advanced troubleshooting section on this page and run the subinacl stuff. I went and watched a movie while it ran - just be patient.
http://support.microsoft.com/kb/949377
*Method 1: Reset the registry and the file permissions*