How to solve the blank of Win7 device manager?

  

1. First, press the win+R shortcut on the win7 computer keyboard to open the running window of the computer. In the open running window, enter service.msc and click Enter, so you can open the service window of the win7 computer.

2. In the opened service window, click to select the Plug and Play option, and then double-click to open the setting window of the item. In the window that opens, change the startup type in the window to automatic. Finally click OK to save the settings.

Copyright © Windows knowledge All Rights Reserved