Here’s a link on instructions to reset Windows Updates:

https://support.microsoft.com/en-us/kb/971058

Fix them by forcing a new replication from a working DC using the BurFlags fix:

http://www.michaelriccioni.com/force-sysvol-netlogon-replication-on-a-problematic-domain-controller/

https://technet.microsoft.com/en-us/library/dn408633(v=ws.11).aspx

1. https://technet.microsoft.com/en-us/library/dn408634(v=ws.11).aspx
2. https://technet.microsoft.com/en-us/library/dn408637(v=ws.11).aspx
3. https://technet.microsoft.com/en-us/library/dn408636(v=ws.11).aspx
4. https://technet.microsoft.com/en-us/library/dn408641(v=ws.11).aspx
5. https://technet.microsoft.com/en-us/library/dn408639(v=ws.11).aspx
6. https://technet.microsoft.com/en-us/library/dn408635(v=ws.11).aspx
7.  https://technet.microsoft.com/en-us/library/dn408638(v=ws.11).aspx
8. https://technet.microsoft.com/en-us/library/dn408640(v=ws.11).aspx