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Warning: Wrong Active Directory Page Size

U-Move cannot load Active Directory because the AD database page size does not match.

If you see this warning message, click Ok to dismiss the message. U-Move will roll back the partial loading of AD and exit.

How to Fix This Error

Use a backup source that has the same page size.

Overriding the Warning Message

You should not override the warning message. Instead, find a backup source that has the same page size.

Only override the warning message when the target DC is inside an isolated network, for example to create test forest, and you know that all DCs in the test network are running the same page size.

You can also safely override the warning message when doing a disaster recovery of the entire AD forest.

How to override this warning

For more information

For more information, see the following topics:

• What is the Active Directory 32K Page Size?
• Database 32k pages for Active Directory (Microsoft Learn)
• Enable Database 32k pages optional feature in Active Directory Domain Services (Microsoft Learn)