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windows 10 upgrade
In a windows 10 OS upgrade Task Sequence, how to add a roll back to previous version step in case of failure.
See https://docs.microsoft.com/en-us/windows-hardware/manufacture/desktop/dism-uninstallos-command-line-options#initiate-osuninstall for how to invoke an uninstall at a later time. Note that this requires the Windows.old folder to still exist; you can configure how long that folder is kept via group policy.
If anything fails during the OS upgrade process, it will automatically roll back. Are you asking if there is a way to later force a rollback (e.g. you find later that the OS isn't working as desired)? If so, there is a way to do that via DISM.
See https://docs.microsoft.com/en-us/windows-hardware/manufacture/desktop/dism-uninstallos-command-line-options#initiate-osuninstall for how to invoke an uninstall at a later time. Note that this requires the Windows.old folder to still exist; you can configure how long that folder is kept via group policy.
