Creating an MSIX package
Before we can create an MSIX image, we need the application in the correct format, which is an MSIX package. You will first need to package your application with the MSIX packaging tool or a third-party tool such as TMEditX.
Important note
MSIX app attach does not support automatic application updates. Therefore, you must disable automatic updates on the operating system. Otherwise, you could end up with unusable applications for the end user(s) if updates occur. It is also important to note that you may need to turn off auto-updating within the application if it supports such a feature.
To turn off automatic updates on the operating system image, you need to run the following script within Command Prompt:
rem Disable Store auto-update: reg add HKLM\Software\Policies\Microsoft\WindowsStore /v AutoDownload /t REG_DWORD /d 0 /f Schtasks /Change /Tn "\Microsoft\Windows\WindowsUpdate\Automatic app update" /Disable Schtasks /Change /Tn "...