windows 10 upgrade

[AshishChadha]

In a windows 10 OS upgrade Task Sequence, how to add a roll back to previous version step in case of failure.

[#2]

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.

[#3]

@Michael Niehaus Yes.

[#4 · Accepted solution]

See https://docs.microsoft.com/en-us/windows-hardware/manufacture/desktop/dism-uninstallos-command-line-... 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.