By default, you can open Device Manager by right click My Computer, click Properties menu, click Hardware tab and then click Device Manager button. Or another way is through double click System icon inside Control Panel. But unfortunately, you can’t open it sometimes; usually it caused an error on registry. And if you get a same ‘accident’ with me, you can to try this trick.

1. Open Run dialog by click Start -> Run menu and enter regsvr32 devmgr.dll in box then press Enter.

2. You’ll get a message box that says the registration file library is success; it means your registry structure has been repaired.

Now, try to open Device Manager.

(article no:00125)