Win8.1 notification bar icon off and on gray What to do

When the notification bar icon is not displayed, our startup off configuration is grayed out and can not be selected, what should we do??

1. Generally, our notification bar is an icon that we often use. Sometimes we delete it by mistake, and we can't find it anymore. We can solve it by right clicking and turning off the computer icon.

2, but sometimes we will encounter the problem below is that the icon is grayed out when it is turned on and off, we can not set, then we must open the registry to change the settings.

3, the operation interface input as shown below

4, the following steps in order to open

5, find the following

6, regardless of You are the speaker, power supply, network connection, time, and control center. Just click on the corresponding one, the item is forbidden, you can confirm it. Finally, don't forget to restart the computer. ok.