How to save different subfolders of a folder in parallel?

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Posts: 2
Joined: 15 Nov 2025

Zabizabo

Hi there,

I have the donation version of FreeFileSync and I meet a problem to save different subfolders from the same folder on my NAS.

Just to make an example : I have the folder C:\Music with two subfolders Music1 and Music2.
I want to save C:\Music\Music1 on MusicNAS1 folder (Save 1) and C:\Music\Music2 on MusicNAS2 folder (Save 2) on my NAS and I want to copy these folders in parallel.

In Save 1, I have excluded C:\Music\Music2 and in Save 2, I have excluded C:\Music\Music1.
I'm running Save 1 and it's ok but as soon I run Save 2, I have the message saying that the folder C:\Music is in use. It's related with sync.ffs_lock but I don't know to proceed to save both folders in parallel.

Thanks for your help
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Posts: 4866
Joined: 11 Jun 2019

xCSxXenon

Click the '+' to add multiple folder pairs to the same sync config
Posts: 2
Joined: 15 Nov 2025

Zabizabo

Click the '+' to add multiple folder pairs to the same sync config xCSxXenon, 15 Nov 2025, 19:10
Thanks for your answer. Sometimes I'm stupid :)