How to solve the problem when the license is expired when Win10 is activated

There are some Win10 users who have activated a Win10 and saw a prompt indicating that this version of the license has expired. What is going on? How to solve this problem?

By testing such a prompt, One reason is that your computer is set up wrong time, may exceed the preview period of use, so we just re-set about the right time can also One reason is that your preview version may not be updated for a long time, try to update to the latest version.

From April 1, 2015, Microsoft has sent a notification to users to remind users to upgrade their computers to new versions. For example, Win10 has released a new version of the technology preview, and everyone can upgrade to the latest version. Can solve the problem.

But in general win10 or a system in the test, whether the user or the system itself angular degree of maturity is not high.

The above is the solution to activate the Win10 prompt license has expired, that is to say, as long as Win10 appears like this, because you are using Win10 or before the April 1 version, just put Win10 The upgrade will not be available until the April 1st version.