I'm updating the regular game from v 1.2 to v 2.0 and I'm getting the following issue

The file "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\World of Warcraft\World of Warcraft.lnk.Temporary" could not be created. If this problem persists, you may be able to solve it by uninstalling and then reinstalling the game. If you are unable to correct this problem, please contact Blizzard Technical Support. (InstallerFile::Create)


Plz tell me I don't gotta re-install...