Derek Lakin

Installing Office 2010 Beta


If you’re having trouble removing Office 2007/2010 CTP, don’t use the Windows Installer CleanUp Utility. See my subsequent post for updated information.

The beta release of Office 2010 was released yesterday on MSDN, Technet, and Connect, so like a good geek I rushed out and downloaded it. First things first, if you have the Community Technology Preview installed, you’ll need to uninstall it, which I did. However, after doing that and rebooting I still got the following error message:

Setup Errors When Installing Office 2010 Beta

As we had already established “Microsoft Office 2010 does not support upgrading from a pre-release version of Microsoft Office 2010.” so I was at a bit of a loss as to the cause of the problem.

To cut a long (and stressful) story short, I downloaded the Windows Installer CleanUp Utility and managed to locate and uninstall a couple of stray Office 2007 components that still existed but weren’t listed in Control Panel and voila! It worked. Hopefully this post will save a few other people some time and hassle.


I had the same problem with the 64-bit version of Office 2010 Beta, but decided against installing, because it won’t work with 32-bit plug-ins and I think it will be a while before any of the applications that I have that integrate with office produce a 64-bit version of their plug-ins.

Product Activation Failed

After successfully getting Office 2010 installed (watch out for the Junk Email Filter Update in the Windows Installer CleanUp Utility list) the next problem was that I got a “Product Activation Failed” message for all of the applications. The solution to this problem is thankfully much simpler: Go to Control Panel and choose to “Change” the application (rather than Uninstall). In the dialog box, select “Enter a Product Key” and provide the key that you have (from MSDN/TechNet/Connect) and then carry on (click “Continue” until the end). Another problem solved.