#1 - Sept. 15, 2010, 3:32 p.m.
If you are unable to use the uninstaller to remove the game from your system you will need to go through and manually uninstall the game by deleting the application directory where the program was installed. The default location is "C:\Program Files\World of Warcraft". On Vista/7, this folder may also have been moved to "C:\Users\Public\Games\World of Warcraft".
You may also want to search your hard drive for any Warcraft related files and delete them, including your Temporary folders and the Blizzard Entertainment folder from the common files folder. These folders will normally be located at:
C:\Windows\Temp
C:\Documents and Settings\<YourName>\Local Settings\Temp
(Delete all files in these folders that you are able to. Some files may be used by other programs and not able to be deleted.)
C:\Program Files\World of Warcraft
(Select and Delete this folder if it exists)
C:\Program Files\Common Files\Blizzard Entertainment
(Select and Delete this folder if it exists)
C:\Users\Public\Games\World of Warcraft
(Select and Delete this folder if it exists)
C:\Users\Public\Public Documents\Blizzard Entertainment\World of Warcraft\
(Select and Delete this folder if it exists)
Once uninstalled, please also remove the remaining World of Warcraft game folder if this has not been done already. Once all previous files have been removed, re-run the installer from the installation CD or downloaded install files to reinstall the game.