Trying to demote a Domain Controller the process fails with:
Active Directory Domain Services could not transfer the remaining data in directory partition DC=ForestDnsZones,DC=domain,DC=com to
Active Directory Domain Controller \\domaincontroller.domain.com.
"The directory service is missing mandatory configuration information, and is unable to determine.
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Remove all references to available offline files
To do this, you need to format the Sync Center database.
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- Launch the Registry Editor (RegEdit.exe)
- Navigate to: HKLM\SYSTEM\CurrentControlSet\Services\CSC\Parameters
- Create a new DWORD (32-bit) Value called FormatDatabase with a value of 1
- Restart. This Registry key will be deleted after restart as well as.
Disk shows as Read Only under Disk Management
To clear the Read Only attribute on a disk launch the Command Prompt and use the DISKPART tool:
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- LIST DISK (displays a list of disks and information about them)
- SELECT DISK n (select the specified disk and sets the focus to it;.