Error installing Office 2010 RTM
The final version of Office 2010 was released to Technet and MSDN subscribers yesterday. When I tried to upgrade my primary Windows 7 virtual machine on my Mac I got the following error complaining that I had the beta version installed:
This was odd because this VM was primarily used for my school coursework and had Office 2007 installed, but I never tried 2010 on it. I had opened some documents that were created in 2010, but that was it. I searched my installed programs and updates and found nothing with the number 2010. Reading through the Technet forums, I saw other people with similar errors. One suggestion solved the problem for me. Running the MSI Cleanup Utility, I discovered that there were some 2010 bits installed.

As you can see from the image, there are two MUI packs from Office 2010 installed. How they got there, I'm not sure, but I suspect it might be due to opening the documents that originated in 2010 on another computer. I removed the two 2010 items with the cleanup utility and Office 2010 installed without any other problems. Hopefully this posts helps other people running into this problem.