Can't Uninstall Sims 3 Seasons

[livvycait]

I'm trying to uninstall the sims 3 seasons and the sims 3 from my laptop so I can reinstall it using the product key. (I lost my disc so I'm trying to uninstall it so I can download it)

Whenever I select Uninstall Programs > Sims 3 it comes up that 'programmes associated with the sims 3 are in use' or something like that, but in task manager NOTHING is running?! 

HELP .

[roberta591]

Did you try to reboot the laptop? Some laptops go to sleep and don't shut down. I configure my computers to shut down so the next time I power on a computer I get a clean start.