Major issue: network resource that is unavailable?

I've never had exactly that error, you might try the instructions here http://docs.info.apple.com/article.html?artnum=93976 under General Installation Troubleshooting. Completely Remove iTunes & Quicktime, Empty Temp Directory,

and PARTICULARLY Clean up iTunes installer files on the computer, as that may fix your other version issue.

Then try the suggested reinstall. That seems to fix an awful lot of problems like this.

I am not an expert, just a fellow iTunes enthusiast.

I am having the identical problem. I have used the search feature for iTunes.msi and have been advised that no such file exists on my system. So, it seems it is not a problem with accessibility at all. I can't update iTunes and I can't remove it from my system, either. Each try yields the same result! Help!

The instructions on how to clean up the temp files is not clear and how does one go about "cleaning the iTunes installer program?"

You can download the Windows Installer Cleanup Utility from Microsoft, which will clean up any leftover installer files that may be causing issues with your current installation. To do this:

1. Click here first, and read the important information about the software.
2. Click the "Download the Windows Installer Cleanup Utility package now" link on that page to download a file titled msicuu2.exe.
3. Open the msicuu2.exe file and follow the prompts to install it.
4. On the Start menu, point to All Programs and then click Windows Install Cleanup; the Windows Installer Clean Up Utility window appears, listing software that is currently installed on your computer.
5. Select iTunes from the list and click Remove.
6. Click OK in the confirmation dialog that appears.
7. Repeat steps 5 and 6 if you have multiple iTunes entries listed.
8. Select QuickTime from the list and click Remove.
9. Click OK in the confirmation dialog that appears.
10. Repeat steps 8 and 9 if you have multiple QuickTime entries listed.
11. Click Exit.
12. Restart the computer.
13. Install the latest version of iTunes from http://www.apple.com/itunes/download.

To empty the temp folder using Windows XP. (adapted from the online instructions. Does not include info for Vista.)


1. On the Start menu, click My Computer/Computer (or double-click My Computer on the Desktop).
2. In My Computer/Computer, open Local Disk C:.
3. Open Documents and Settings.
4. Double-click the folder that bears your username(i.e. Owner, or the name of the user you are logged in as.)
5.If you see a Local Settings folder, skip to step 9. If you don't see a Local Settings folder, proceed to the next step.
6. From the Tools menu, choose Folder Options.
7. Select the "Show hidden files and folders" button.
8. Click OK.
9. Double-click Local Settings or Local folder. If Windows needs your permission to continue, click Continue.
10. Right-click on the Temp folder and on the shortcut menu, choose Delete.
11. In the confirmation dialog that appears, click Yes.
12. If you are unable to delete the Temp folder, close all programs, especially those in the Notification area (system tray) of the Windows Task bar shown below and repeat step 10.
13. Restart your computer.
14. Install the latest version of iTunes from http://www.apple.com/itunes/download.

Message was edited by: markchd

Thank you very much for the information. It worked without any problems. You steps were very easy to understand and I appreciate your assistance.