Synchronizing documents from one PC to another PC with robocopy
Make a traditional backup first.
An error in the calendar or the clock of one of the two PCs
will have irreparable effects if there are no backup copies!

USB KEY METHOD:
Use 2 robocopy scripts in each systems:
MAIN_PC
When data has changed in MAIN_PC:
copy MAIN_PC to usb key
When data has changed in PC_PORTABLE:
restore usb key to MAIN_PC
PC_PORTABLE
When data has changed in PC_PORTABLE:
Copy PC_PORTABLE to usb key
When data has changed in MAIN_PC
Restore usb key to PC_PORTABLE

LOCAL NETWORK METHOD:
Shared drives
MAIN_PC & PC_PORTABLE must have the same physical user names and passwords
Ignore user names that have been renamed.
Identify machine name, work group & physical user name
Shared folders
\\MAIN_PC\Users\user_name\Documents
\\PC_PORTABLE\Users\user_name\Documents

Use 1 robocopy script in each system:
Copy to PC_PORTABLE
RoboCopy \\MAIN_PC\Users\user_name\Documents\xefi
\\PC_PORTABLE\Users\user_name\Documents\xefi /E /R:0 /W:0 /XA:SH /FFT /A-:SH /XD /XJD
Copy to MAIN_PC
RoboCopy \\PC_PORTABLE\Users\user_name\Documents\xefi
\\MAIN_PC\Users\user_name\Documents\xefi /E /R:0 /W:0 /XA:SH /FFT /A-:SH /XD /XJD

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keywords: backup save restaure restore sauvegarde synchroniser synchronize données data