Win10 start menu how to open win10 menu can not open no response solution

users experience the win10 preview version often encounter some operational problems, win10 start menu how to open? The following small series will teach you that the win10 menu can not open the solution, I hope to help everyone.
Here we can set it in the control panel, mostly because the purchase key step is not set.
1, Right Start button, open the Control Panel

2, select & ldquo; systems and safety & rdquo;

3, click on the & ldquo; Add features toWindows 10 Technical ... (Get the new more features windows)

4, then there will be a page, & ldquo; how do you want to start .. & rdquo;, there are two options, select & ldquo; I have purchased the product key & rdquo;

5, enter the key: NKJFK GPHP7 G8C3J P6JXR HQRJR (the pro-test feasible, if not search the other key online)

6, click Next, the system will download the update, the update will be completed restart, the restart process will install the update, wait for the update is complete and you're done

win10 no start menu solution:
1, right-click on the taskbar and then click properties