note! All internal previews of Windows 10 cannot be activated. The serial number has expired.

Microsoft has stopped the validity of all Windows 10 Insider Preview pre-release keys today, which means using these serial numbers that have been circulated on the network to install the preview. Version 10 will not be able to complete activation. Fortunately, the installed users are not affected, this key will remain active, but if you need a new installation or reinstallation, you may have to think twice, it is best to wait for the RTM to be released later.

The Microsoft spokesperson said that the pre-release preview work has basically ended, Microsoft will not release any preview version of Windows 10, although the official version of the release is quite close, but still hope to have installed Build Users of the 10240 version continue to participate in the test, and eventually internal test users will receive an upgrade for free.

Since the release date of Windows 10 was less than two weeks on July 29, Microsoft encouraged test users to continue to report bugs and other issues in preparation for the final release.