===== Fix Corrupt DFS and SYSVOL =====
{{tag>Windows}}

===Fix Corrupt DFS database===
Stop DFS Replication Service

Remove the old DFS database with the following commands;
<file>
icacls "c:\system volume information" /grant Administrators:F
cd c:\System Volume Information
move DFS DFS.old
</file>

Start DFS Replication

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===Fix DFS expired===
Change the DFS offline maximum with the following command;
<file>
wmic.exe /namespace:\\root\microsoftdfs path DfsrMachineConfig set MaxOfflineTimeInDays=650
</file>

Restart DFS Replication

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===Enable Replication Auto Recovery===
Edit registry
<file>
HKLM\System\CurrentControlSet\Services\DFSR\Parameters\StopReplicationOnAutoRecovery DWORD=0
</file>

Run command
<file>
wmic /namespace:\\root\microsoftdfs path dfsrmachineconfig set StopReplicationOnAutoRecovery=FALSE
</file>