Several months ago I purchased an upgrade package to move from Office 2007 to Office 2010 Professional Plus. Each installation fails giving the following message:
Error 1935: An error occurred during the installation of assembly component {3F-A0170E-227C-37C7-BACD-64691A992C81}. HRESULT: 0x80070003.
I have spent hours (HOURS!) searching for solutions including the Microsoft Answers website and various other "hits" from Google. I have also been getting an HRESULT error when attempting to update iTunes, and after updating to iTunes 10.4, I have to start it using XP compatibility mode.
I tried a "safe" reinstall of Windows 7 (running SP1, and uninstalled SP1 first), and when I did that, there was a major snafu resulting in having to select a boot option at each startup. I used Acronis and restored to an earlier point which fixed that problem.
I am convinced that it is a .NET problem or C++ file corruptions. However, running sfc/ scannow reveals no problems. I also ran several suggested Net Framework repair options I found; alas, no success. I have NOT uninstalled Office 2007 secondary to reports that after attempting to install Office 2010, users were unable to reinstall Office 2007.
I even considering buying Win7 Professional and installing that to fix files, but was told that would probably be a waste of money and time.
I am fairly computer literate (CompTIA A+ certified). I am close to just giving up and waiting until I replace this Dell XPS 720 in a year or so (oh, and again Windows 7, SP1, TONS of free space on C drive, 8 GB RAM, and all other programs except iTunes run fine - I have to now start iTunes running XP compatability). Just thought I would reach out to this talented and knowledgeable group.
Thanks for any input, suggestions, or insights.
Ed



