DFSR Migration was unable to rollback migration on the Domain Controller %1!S! to the 'PREPARED' state. This could be because ...

Windows Server 2008

DFSR Migration was unable to rollback migration on the Domain Controller %1!S! to the 'PREPARED' state. This could be because DFSR was unable to connect to the local Active Directory. DFSR will retry the next time it polls the Active Directory. To force an immediate retry, execute the command 'dfsrdiag /pollad'. 
 
Additional Information: 
Domain Controller: %1!S! 
Error: %2!S! (%3!S!)

DFSR Migration was unable to delete the DFSR local settings on the Domain Controller %1!S!. This could be because DFSR was ... DFSR Migration was unable to delete the NTFRS local settings on Domain Controller %1!S!. This could be because DFSR was unable ... DFSR Migration was unable to delete the SYSVOL folder located at %1!S!. This may occur due to sharing violations. Additional ... DFSR Migration was unable to delete the SYSVOL_DFSR folder located at %1!S!. This may occur due to sharing violations. Additional ... DFSR Migration was unable to rollback migration on the Domain Controller %1!S! to the 'PREPARED' state. This could be because ... DFSR Migration was unable to transition to the 'ELIMINATED' state for Domain Controller %1!S!. DFSR will retry the next time ... DFSR Migration was unable to transition to the 'PREPARED' state for Domain Controller %1!S!. DFSR will retry the next time ... DFSR was unable to copy the contents of the SYSVOL share located at %1!S! to the SYSVOL_DFSR folder located at %2!S!. This ... DFSR was unable to create the SYSVOL_DFSR folder at %1!S!. This could be due to lack of availability of disk space. Additional ...