Win10 10074 preview version of the start menu can not open how to do?

Many Windows used after upgrading 10074 will cause the menu to fail to open, no matter what installation package is downloaded. In fact, this phenomenon depends on the language package problem, the specific win10 10074 start menu can not open the solution please see this tutorial.

1. After upgrading from 10061 to 10074, the start menu cannot be opened. According to the online tutorial, after downloading KB3061161, KB3061162 and KB3038314, the start menu cannot be opened. Instead, the taskbar can't be opened.
Try again to update the graphics driver, because the automatic update failed, so search for the graphics card driver with the keyword 1000M in the above URL, find the latest version of NVIDIA driver update for NVIDIA Quadro 1000M, the menu is still not working after the installation is successful.
2, win10 10074 start menu can not open solution
Finally found that the language package problem, install English (United States) language pack in the settings and regional options - for x64 system based Windows Technical Preview - ( KB3061055) [en-US_LP], the problem is solved, the long-lost start menu is finally back. The above ideas are for your reference.