Robocopy

Flags

• b — BackUp Mode. No Access Denied. For BackUp Rights.
• mir — Mirror.
• xJ — Do not follow Junctions.
• copyAll — equivalent to /COPY:DATSOU (Data, Attrib, TimeStamps, Security, Owner, aUditing-Info).
• xD — Exclude Directory.
• xF — Exclude File.

Backup OS

Caution: /mir mirrors the destination, including deletes.

robocopy /b /mir /xj /copyall /b <Src> <Dest>
robocopy /b /mir /xj /copyall /b /R:0 D:\O e:\  /xd "Recycler" "System volume information"

/R:0 sets retries to 0.