Windows 10 Preview Build-wise expiration dates

At a post on Microsoft Answers, RajithR, a Microsoft Support Engineer, posted the license expiration dates of Windows 10 Technical Previews, build-wise. He has summarized the expiry dates for each of the Windows 10 Technical Preview builds that Microsoft has released so far, in the form of a table. Two weeks before expiry, Windows 10 Technical Preview will give warnings. On expiry, it will reboot every 3 hours. After 2 weeks, your system will no longer boot.

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Windows 10 Preview license expiration dates

Build number Expiration warnings begin License expiration date Windows will stop booting
9841 4/2/15 4/15/15 4/30/15
9860 4/2/15 4/15/15 4/30/15
9879 4/2/15 4/15/15 4/30/15
9926 9/17/15 10/1/15 10/15/15
10041 9/17/15 10/1/15 10/15/15
10049 9/17/15 10/1/15 10/15/15
10130 09/17/15 10/01/15 10/15/15

He has mentioned that approximately 2 weeks before a build’s license expires,  Windows 10 will start giving warnings, asking you to update to the latest Technical Preview build. If you are receive such expiration warnings, it is quite possible that Windows Update may be failing to install the latest Windows 10 Technical Preview build automatically.  You will then have to download the latest ISO file from Microsoft,  mount it and launch setup.exe.

Read: What happens when Windows 10 expires.

Once the build expires, your computer will automatically reboot every 3 hours.

The computer will no longer boot, 2 weeks after the license has expired. In this case, you will have to download the ISO file from another computer and then transfer the ISO file to some installation media.  Once you have done this, you will have to boot the computer from the installation media to install the latest build of Windows 10 Technical Preview.

Source.

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Anand Khanse is the Admin of TheWindowsClub.com, a 10-year Microsoft MVP Awardee in Windows (2006-16) & a Windows Insider MVP. Please read the entire post & the comments first, create a System Restore Point before making any changes to your system & be careful about any 3rd-party offers while installing freeware.

2 Comments

  1. itsheebutt

    That’s just great. So if we don’t use a particular computer with Windows 10 and another OS on it, after the particular all hope is lost date it won’t even boot to the other OS?
    Is this supposed to be some way Microsoft is winning customers over? How about an option to make Windows 10 the permanent OS instead of self-destructing.
    I hear it is going to be free anyway.

  2. ????? ?????

    What are you talking about? Do you read your own words BEFORE you post them? The proper way to experience Windows 10 was to install it in a dual boot configuration. Windows 10 if installed correctly provides you with an OS selection menu at boot time. When Win 10 has expired selecting the other OS will get you to your …well, other OS, selecting Win 10 will get you nowhere. If you have no idea what dual boot is and how to do that, then you installed Win 10 as a single boot option and when it expires well you either have to reinstall the next build version of Win 10 from an *.iso file that you burned to a DVD before, or perhaps you were smart enough (which I sincerely doubt, no offence) to have made an image of your previous OS, say Win 7 or 8 or 8.1. Got it?

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