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As documented here and elsewhere, the windows subsystem for Linux is currently in beta and therefore not available on Windows 10 Long-term Service Branch. My experience on LTSB is that you could enable the WSL feature but the Windows Store wouldn't download the distro appx.

A few days ago I noticed an MS how-to beginning:

"There are several scenarios in which you may not be able (or want) to install WSL Linux distros via the Windows Store. Specifically, you may be running a

Windows Server or Long-Term Servicing (LTSB/LTSC) desktop OS SKU that doesn't support Windows Store, or your corporate network policies and/or admins do not permit Windows Store usage in your environment.

In these cases, while WSL itself is available, how do you download and install Linux distros in WSL if you can't access the store?"

https://docs.microsoft.com/en-us/windows/wsl/install-manual

This led me to think WSL would be available on LTSB. However, I find the same "unsupported version" error when I try to install the package. Also the MS how-to doc looks a little rushed (bad links, grammar/spelling errors) so I don't know how much stock to put in it.

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    WSL, is no longer a beta windows feature, hasn’t been for nearly a year
    – Ramhound
    Jul 29, 2018 at 6:28
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    Depending on the version or the network policy, it is possible that Windows machines cannot get access to the Windows Store. For instance, according to the MS website, some Windows LTSB can install the WSL feature but cannot access the Windows Store.
    – Jaime
    Jul 29, 2018 at 6:40
  • @Ramhound Well that it's not currently beta isn't particularly relevant. It was beta at the time of the last LTSB update.
    – Hasse1987
    Jul 29, 2018 at 13:35
  • @Jaime Isn't this the exact same thing I said (and same URL I posted)?
    – Hasse1987
    Jul 29, 2018 at 13:36
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    Probably, the problem trying to install a Linux distribution came with the version of WSL included in your Windows LTSB. The WSL included last year is not the same used today. If you need WSL today, you may try with old versions of the distributions or some installers for linux on WSL such as WSL-Distrolauncher, WSLInstall and LxRunOffline. A future version of the LTSB will include newer versions of the WSL and you will be able to run current distributions then. -- Do you know what is the effective version/build number of your Windows LTSB?
    – Jaime
    Jul 29, 2018 at 13:47

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I can definitively answer this. Windows 10 LTSB 2016 is build 14393, and you need at least build 16215 to run WSL. This may be coming in Windows 10 LTSC 2019 (they renamed LTSB to LTSC), but no guarantees.

Sources:

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  • I am not entirely sure your answer is correct. 14393 and 16215 are in two entirely different releases. one is the literal 1607 which of course is LTSB which does not include WSL. 16215 is not even a stable build and is considered an Insider Preview build since it's before 16299. None of your reference articles apply to LTSB/LTSC releases. Windows 10 LTSC 2019 has not even been released yet.
    – Ramhound
    Oct 24, 2018 at 22:02

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