Last step "Add-AppxPackage -Register path-to-extracted-msix\AppxManifest.XML" doesn't work
I performed all steps listed in the instructions, and all seemed to work property, except...
When I go to the "C:\WSA\WsaPackage_2203.40000.3.0_x64_Release-Nightly" folder, and execute "Add-AppxPackage -Register .\AppxManifest.xml" I get the following error:
Add-AppxPackage: Deployment failed with HRESULT: 0x80073CF9, Install failed. Please contact your software vendor. (Exception from HRESULT: 0x80073CF9) Rejecting a request to register from AppxBundleManifest.xml because the manifest is not in the package root. NOTE: For additional information, look for [ActivityId] f19f99bc-5489-0000-564a-2ef38954d801 in the Event Log or use the command line Get-AppPackageLog -ActivityID f19f99bc-5489-0000-564a-2ef38954d801
I get Windows cannot install package MicrosoftCorporationII.WindowsSubsystemForAndroid_2203.40000.3.0_x64__8wekyb3d8bbwe beca use this package is not compatible with the device. The package requires OS version 10.0.22000.120 or higher on the Win dows.Desktop device family. The device is currently running OS version 10.0.19044.1645.
I performed all steps listed in the instructions, and all seemed to work property, except...
When I go to the "C:\WSA\WsaPackage_2203.40000.3.0_x64_Release-Nightly" folder, and execute "Add-AppxPackage -Register .\AppxManifest.xml" I get the following error:
Add-AppxPackage: Deployment failed with HRESULT: 0x80073CF9, Install failed. Please contact your software vendor. (Exception from HRESULT: 0x80073CF9) Rejecting a request to register from AppxBundleManifest.xml because the manifest is not in the package root. NOTE: For additional information, look for [ActivityId] f19f99bc-5489-0000-564a-2ef38954d801 in the Event Log or use the command line Get-AppPackageLog -ActivityID f19f99bc-5489-0000-564a-2ef38954d801
The Manifest is either in the wrong folder or you messed up the folder structure somehow
I get Windows cannot install package MicrosoftCorporationII.WindowsSubsystemForAndroid_2203.40000.3.0_x64__8wekyb3d8bbwe beca use this package is not compatible with the device. The package requires OS version 10.0.22000.120 or higher on the Win dows.Desktop device family. The device is currently running OS version 10.0.19044.1645.
You are on too old of a version of Windows to install this. Either you downloaded the wrong build or they have begun to switch retail over to requiring 11
is there a version for windows 10?
Straight from the readme on the front page of the project, lol
Just update 10 to latest, or install 11

This is confusing - WSA doesn't work on Windows 10 at all (even after force-editing the manifest files), users need to have Windows 11; But the preparation steps (involving usage of WSL) can be done on Windows 10, version 2004 and above.
WSL is used to do the prep steps because Android is based on Linux, so Linux tools can be used to manipulate the Android disk images that ship with WSA. So WSL is a convenient way to do it, but you can use any Linux PC or VM to do those steps. You can probably use something like Cygwin or native Windows ports of the tools the scripts run but you're on your own if you try that.
I got the following error:
Add-AppxPackage : Deployment failed with HRESULT: 0x80073CFD, A Prerequisite for an install could not be satisfied. Windows cannot install package MicrosoftCorporationII.WindowsSubsystemForAndroid_2206.40000.15.0_x64__8wekyb3d8bbwe because this package is not compatible with the device. The package requires OS version 10.0.22000.120 or higher on the Windows.Desktop device family. The device is currently running OS version 10.0.19044.1889. NOTE: For additional information, look for [ActivityId] 8ce5e5c8-b0c5-0001-3a86-e78cc5b0d801 in the Event Log or use the command line Get-AppPackageLog -ActivityID 8ce5e5c8-b0c5-0001-3a86-e78cc5b0d801 At line:1 char:1
- Add-AppxPackage -Register C:\WSA\MicrosoftCorporationII.WindowsSubsys ...
-
+ CategoryInfo : NotSpecified: (C:\WSA\Microsof...ppxManifest.xml:String) [Add-AppxPackage], Exception + FullyQualifiedErrorId : DeploymentError,Microsoft.Windows.Appx.PackageManager.Commands.AddAppxPackageCommand
You need Windows version 10.0.22000 or greater, aka Windows 11