Microsoft 365 Endpoint AdministratorDeploy Windows client (25-30%)Hard
A company is upgrading 50 Windows 10 devices to Windows 11. They want to ensure that if the upgrade fails or causes unexpected issues, they can quickly revert to Windows 10. This rollback capability must be available for at least 30 days after the upgrade. Which setting should they configure?
- AConfigure the 'Uninstall updates' Group Policy to 30 days
- BDisable the 'Delete old operating system' task in Task Scheduler
- CSet a System Restore Point immediately after upgrade
- DIncrease the 'Uninstall Windows 10 after N days' setting to 30
Show answer & explanationAnswer & explanation
Correct answer: D. Increase the 'Uninstall Windows 10 after N days' setting to 30
Windows automatically keeps the previous OS files for 10 days to allow rollback. This period can be extended up to 60 days using the 'Uninstall Windows 10 after N days' setting via Group Policy or MDM, ensuring the rollback capability for the required 30 days.
Why the other options are wrong
- A. The 'Uninstall updates' policy applies to quality updates, not feature updates (OS upgrades).
- B. While this task cleans up old OS files, manually disabling it is not the official or managed way to extend the rollback period, and it might not fully prevent the system from reclaiming space.
- C. System Restore Points do not revert feature upgrades; they are for minor system changes.
Windows Upgrade Rollback Period
The default time (10 days) after a Windows feature upgrade during which a user can revert to the previous version of the operating system, which can be extended via policy.
- Default period is 10 days.
- Can be extended up to 60 days via Group Policy or MDM.
- Requires the 'Windows.old' folder to be present.
Memory trick: Rollback days: A policy to extend the safety net.