To start and stop non-Plug and Play drivers
Open Device Manager
Click the View menu, and then click Show hidden devices.
Double-click Non-Plug and Play Drivers, right-click a driver, and then click Properties.
On the Driver tab, click Start or Stop to start or stop the driver protocol, and then click OK.
Improperly changing the startup type of a boot device or system device can cause the system to become unstable or to no longer boot, or cause the device to stop working altogether. You should fully understand the instructions before changing this setting.
You should also use caution when starting or stopping a non-system device. Starting or stopping such a device incorrectly can cause it to stop working altogether.
You must be logged on as an administrator or a member of the Administrators group in order to complete this procedure. If your computer is connected to a network, network policy settings may also prevent you from completing this procedure.
To open Device Manager, click Start, and then click Control Panel. Click Performance and Maintenance, and then click System. On the Hardware tab, click Device Manager.
If Start is unavailable, the driver is already loaded.
The Startup Type defaults to the type required by the driver when the driver is first installed. You can use the options described in the following table to change the default. Use caution when changing the startup type; be sure that you fully understand the instructions before you change this setting.
Starts every time the system starts, after the boot and system devices start. Click this option for devices that are not critical to basic system operation.
Starts every time the system starts, before any other devices start. Click this option for critical devices that are essential to system operation.
Starts when the device is detected or it is needed for a specific event. Click this option for devices that are not critical to basic system operation or required in device detection.
Starts every time the system starts, after the boot devices start. Click this option for critical devices that are essential to system operation.