For Windows 10 Enterprise 2015 / 2016 LTSB or Windows Enterprise 2015 / 2016 LTSB N
Download

If you do not want App Installer / Purchase App / Xbox identity, delete each one appxbundle before running to install. However, if you plan on installing games or any app with in-purchase options, you should include everything.
If the store still will not function, reboot. If still not working, open the command prompt as the administrator and run the following command, then reboot once more.
PowerShell -ExecutionPolicy Unrestricted -Command "& {$manifest = (Get-AppxPackage Microsoft.WindowsStore).InstallLocation + '\AppxManifest.xml' ; Add-AppxPackage -DisableDevelopmentMode -Register $manifest}"

Right click start
Select Run
Type in: WSReset.exe
This will clear the cache if needed.

This allowed me to update the other apps in the package (Xbox, etc..), but not allowed me to install new apps onto my computer that was already in my library.However, it did allow me to install apps using the "Business Store", which is no fun task. You have to shop on their website (not through the store app), then add the app via their website to your "private store", sign in the Windows Store App using your "Business Store Account", and finally those listed under your "private store", you could download and install.

适用于Windows 10 Enterprise 2015 / 2016 LTSB 或 Windows Enterprise 2015 / 2016 LTSB N
下载地址

如果您不想安装App Installer / Purchase App / Xbox，请在运行安装之前删除对应的.appxbundle后缀的文件。但是，如果您计划安装游戏，或带有购买选项的应用，则不要删除。
如果装完之后商店仍然打不开，请先重启试试。如果仍然不行，请以管理员身份打开命令提示符并运行以下命令之后，然后再重启试试。
PowerShell -ExecutionPolicy Unrestricted -Command "& {$manifest = (Get-AppxPackage Microsoft.WindowsStore).InstallLocation + '\AppxManifest.xml' ; Add-AppxPackage -DisableDevelopmentMode -Register $manifest}"

Win+R打开运行，输入WSReset.exe回车。
该命令会清空并重置Windows Store商店的所有缓存。

该脚本由GOD666贡献：
https://forums.mydigitallife.net/threads/add-store-to-windows-10-enterprise-ltsc-ltsb.70741/page-22#post-1419464