Number of milestones rollback is allowed

Specifies the minimum number of Google Chrome OS milestones rollback should be allowed starting from the stable version at any time.

Default is 0 for consumer, 4 (approx. half a year) for enterprise enrolled devices.

Setting this policy prevents rollback protection to apply for at least this number of milestones.

Setting this policy to a lower value has a permanent effect: the device MAY not be able to roll back to earlier versions even after the policy is reset to a larger value.

Actual rollback possibilities may also depend on the board and critical vulnerability patches.

Supported on: At least Microsoft Windows 7 or Windows Server 2008 family

Number of milestones rollback is allowed:

Registry PathSoftware\Policies\Google\ChromeOS
Value NameDeviceRollbackAllowedMilestones
Default Value
Min Value0
Max Value4


Administrative Templates (Computers)

Administrative Templates (Users)