I am trying to install manager.io software but couldn’t before I was using windows 10 loT Enterprise and it was working find.
Windows 11 should not be a problem. Is your processor 32 or 64 bit? Also it helps if you illustrate with screenshots what you tried to do and what did not work.
You need the msix app see https://apps.microsoft.com/detail/9nblggh4nns1?hl=gb-gb&gl=gb
It would be surprising to me if your version of Windows wouldn’t support MSIX format.
Perhaps it’s an optional component that is not installed by default considering you are using specialized Windows build.
However MSIX is glorified ZIP format. You can rename MSIX to ZIP and then unpack the contents and launch ManagerDesktop.exe
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Sorry but it seems typically for MS that users do not benefit from the installers it needs fr=or example for .msix files
So why not make it easier for those MS users and provide a file format they can use?