This method is applicable to XP system, first use the right mouse click on my Computer, open the Properties window, click on the hardware tag, then we can open the Device Manager.
This method is used in the Win7 system, using the right mouse button to click on the computer icon, open properties, in the left-hand list can see the Device Manager options.
Use Computer Management to open Device Manager, right click on the computer icon, open Management, and then pop up a Computer Management window, click Device Manager.
Press Win+r key to open the run, enter Devmgmt.msc to open Device Manager.
There are also two ways to use the Search bar and Control Panel, but also very simple.