FreeFileSync Open Source File Synchronization
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FreeFileSync User Manual:
#Quick Start
Command Line
Comparison Settings
Daylight Saving Time
Exclude Files
Expert Settings
External Applications
Macros
Performance
RealTimeSync
RTS: Run as Service
Schedule Batch Jobs
Scripting
Synchronization Settings
(S)FTP Setup
Tips and Tricks
Variable Drive Letters
Versioning
Volume Shadow Copy
Variable Drive Letters
USB memory sticks or external hard disks often get assigned different drive letters than the last time they were plugged into the computer. FreeFileSync offers the following solutions:Option 1: Specify a path by using a unique volume label instead of a drive letter:
E.g. [Backup-Disk]\folder
instead of E:\folder when the USB stick in drive
E: is named "Backup-Disk".You can change a volume label by right-clicking on the drive letter in Windows Explorer and selecting Rename.
Option 2: Refer to a disk volume by its unique GUID:
E.g. \\?\Volume{01234567-89ab-cdef-0123-456789abcdef}\folder
A volume GUID uniquely identifies a particular drive partition, and will not change over time.
To get an overview of all volume GUIDs for mounted drives on the system you can run the mountvol command-line tool.
Note
It is not required to look up and enter a volume label, volume GUID, or macro manually. Simply select an alternative path from the drop-down menu:
It is not required to look up and enter a volume label, volume GUID, or macro manually. Simply select an alternative path from the drop-down menu: