Looks like you're going to have to uninstall it manually.
First, go to where your game folder is (default location is C:\Program Files\LucasArts for 32-bit Windows or C:\Program Files (x86)\Lucasarts for 64-bit), delete it and empty the recycle bin.
You're going to have to edit the registry next, so run CCleaner's registry cleaner and backup the registry when it asks you to. If you goof up this next step, all you'll have to do is double-click the backup file to restore the registry back to the way it was.
To get into the registry, go to the Start menu, type "regedit" and click on "regedit.exe" when it appears in the window above. This will open the registry. Navigate to HKEY_LOCAL_MACHINE>SOFTWARE>BioWare (HKEY_LOCAL_MACHINE>SOFTWARE>Wow6432Node>BioWare for 64-bit Windows), right-click on "SW", select "Delete", hit "OK", then close everything up and reboot.
You should then be able to reinstall the game according to the instructions in the second post of the thread that I linked to above.
"They should rename the team to the Washington Government Sucks. Put Obama on the helmet. Line the entire walls of the stadium with the actual text of the ACA.
Fix their home team score on the board to the debt clock, they can win every game 17,000,000,000,000 to 24. Losing team gets taxed by the IRS 100%, then droned."