iTunes 10.7 Gear Driver Install Failure

All attempts to install iTunes 10.7 fail during Gear driver installation with the following error:

"Error writing to file: C:\Program Data\34BE82C4-E596-4e99-A191-52C6199EBF69\GEARDIFx.exe. Verify that you have access to that directory."

This same error occurs when installing drivers downloaded directly from the Gear Software site also.

NO GEAR DRIVERS ARE CURRENTLY INSTALLED -- THERE ARE NO GEAR REGISTRY ENTRIES.

This occurs even if all iTunes software is removed, the temp directory cleared, and all other suggestions on the iTunes support site followed.

Yes, I have verified that I have access to the directory (even though C:\Program Data\34BE82C4-E596-4e99-A191-52C6199EBF69\GEARDIFx.exe is not a directory that exists during the installation).

I have full access to the C:\Program Data directory.