Phone [Q] Cant install samsung USB drivers on my PC

Whenever i try to install the samsung driver from the official site i always get this error message,

"The mobile phone is in use. To install normally you need to remove the device and restart the computer. Please run SAMSUNG USB DRIVER for for mobile phones installer again after restarting."

I had the drivers before, but i uninstalled them coz they werent working very well. Now i cant reinstall. Is there any way to completely uninstall the drivers then reinstall? Any help?