There're the requirements/expectations:

  • ability to both backup to an external drive and update local copy from an external HDD
  • ability to produce non-compressed backup copy (the intention is to backup lots of images, those do not compress well anyway and it's time-consuming)
  • ability to detect differences and backup/update only changed/added/removed files, not the whole archive
  • ability to sync the folder structure as well
  • capability to pre-setup desired backups so as to simplify the process of backing up the data (basically, ability to start the backup / local update in one click)
  • user-friendliness. At least, after an initial configuration. End-user is not a computer-savvy person and not English-proficient either. So the software would preferably have icons and be generally easy to use
  • windows-based
  • (optional but preferred) free software

Essentially, there're 2 PCs with the same library of images and (separately) some documents. The intention is to keep a backup copy on a couple of external HDDs and, as changes may come from both PCs, use the HDDs to synchronise the library and documents among the PCs, while using the HDDs as a main backup.

So far I've tried several kinds of backup software and none was it. FBackup, for instance, failed to sync the same library from 2 PCs. Some other wouldn't produce non-compressed backup copies, another one could only backup the whole archive, not the changed files or could only backup files, but not the folder structure.

Thank you in advance.

  • Phew, I never synchronized 2 PCs that way, but I can only recommend bvckup2. You could check whether that to- and from-synchronization is fine for you during the trial period. It's really a fine tool. I purchased 5 licenses although I needed only 1, just to support the vendor. Jan 22, 2018 at 21:24
  • @ThomasWeller, thanks, I'll definitely give it a go. The words "It's not a two-way sync" are a bit alarming though.
    – Korli
    Jan 25, 2018 at 13:58

1 Answer 1


For anyone looking for the same kind of software - ended up using Allway Sync.


  • Works for syncing both from and to external drive.
  • Detects differences and added/updated/deleted files.
  • Supports folders
  • windows based
  • free version is enough for my needs


  • Wouldn't call it very user-friendly or one-time-settupable

All in all it works and does exactly what we needed to be done.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.