A computer that is running Windows 7, Windows Vista, Windows Server 2008 or Windows Server 2008 R2 continues to use the original printer driver after you update or replace the printer driver
You install a printer by using PrintUI.dll together with the device information file (INF) on a computer that is running one of the following operating systems:
- Windows Vista
- Windows Server 2008
- Windows 7
- Windows Server 2008 R2
In the INF file, you update or replace an existing printer driver. However, the operating system continues to use the original printer driver.
For more information on this issue, including potential causes, workarounds, and resolutions, see: Microsoft KB Article KB2511290.