Windows 7: Printer - Delete the printer driver Manually

Windows XP

1. Delete the printers before you remove the drivers
• Start-->Device & Printers-->Delete the printer then on the folder 
2. Remove the drivers:
• On Device & Printers folder Click File Menu -->Server Properties-->Drivers tab. Now select the drivers you want to uninstall and click Remove button.

Windows 7

1. Open Print Management. Print Management is available in Windows 7 like windows server 2008. 
• Start-->Administrative Tools-->Print Management-->
2. Remove the Drivers.
1. In the Print Management, browse to Print Servers-->Drivers
2. Select the drivers-->Right click-->Remove the driver package.

Windows 7 Command Line

1. Open command prompt in alleviated mode
2. type command: printui /s /t2