Windows 7 Activation Error 0x8007232B

If you get the error 0x8007232B when you try to activate Windows 7 installed from volume licensed media you can run the following from an elevated powershell window:

slmgr.vbs –ipk [product key]
slmgr.vbs –ato

I installed the Elevation PowerToys for Windows Vista to simplify getting an elevated powershell window. Unfortunately, the powertoys didn't seem to work with Win7 so I had to start powershell by ctrl-right-clicking the link and selecting run as Administrator.