After I hit this problem updating CCS I thought it might be wise to uninstall and reinstall. Upon opening Programs and Settings I was surprised to see CCS6 listed as being just 10.5MB in size.
Attempting to uninstall CCS6 opens a blank window like this:
Adding the "Location" column to the Programs and Features view shows CCS as being installed to .\AppData\Local\Temp\ccs_991670b0-ab0d-4db9-7746-6e92bb196552 inside my user folder. That was the temporary directory used during the install process, CCS is actually installed in my Programs folder.
I tried running the uninstaller (ccsv6\uninstall_ccs.exe) directly from my CCS installation folder, but get the same result.
Any suggestions?