How to Delete Drivers From Windowsby Lysis
Windows drivers are small files that run on the computer. These files allow the operating system to communicate with the hardware on the machine. When you replace hardware on the machine, the old device driver is still present. This can reduce the level of performance on the computer. Deleting the old device drivers on the machine improves system performance and reduces the amount of time it takes to boot into Windows.
Right-click the "My Computer" icon on the Windows desktop and select "Properties." Click the "Advanced" tab, and then press the "Environment Variables" button.
Click the "New" button in the main environment window. This opens a dialogue box where you can add a parameter.
Type "devmgr_show_nonpresent_devices" into the variable name, and enter a value of "1." This forces Windows to show hidden device drivers, so you are sure to remove old drivers not in use. Click the "OK" button.
Click the "Device Manager" button in "Hardware" tab. This opens a list of hardware devices on the machine. Click the "View" menu option, and select "Show Hidden Devices."
Right-click each device you no longer use or want to remove, and select "Uninstall." This deletes the device driver from Windows.