Win10 10074 preview version of the method to open the background blur effect of the start menu:

The Windows 10 Build 10074 technology preview is Microsoft's internal beta, but it is now basically mature and stable. If you don't care about some minor problems, you can even use it as a daily system. The start menu, which is popular among the people, was also back in the Windows 10 Build 10074 technology preview, and it has evolved a new style, with a hidden background blur effect, and then a fuzzy glass effect. Then how to open the fuzzy special effects? Let's learn together with the Xiaobian of the system home!

Operation:
1, click Start-Run (Win+R)-Enter“regedit” And press Enter to confirm the permissions.
2, open the Registry Editor, expand HKEY_CURRENT_USER -> SOFTWARE -> Microsoft -> Windows -> CurrentVersion -> Themes -> Personalize.
3, found on the right side "EnableBlurBehind", generally located in the third line.
4, double-click, change the key value from 0 to 1, confirm and close the registry editor.
5, Ctrl+Shift+Esc or Ctrl+Alt+Del or right click on the taskbar, open the task manager, find the Windows Explorer Explorer, and restart it.
After finishing, check out the start menu. This effect is only effective when the start menu is not full screen, and will disappear directly after full screen, but you can drag the border of the start menu to the maximum, so it will always be there. The above is the win10 build 10074 start menu hidden background blur tips introduction