FreeFileSync Forum

Like this?

Run "Disk Inventory X" and see where the space is going

And can you explain what you mean by this?
Where do i run this?

these are my settings.

I don't know what else to check.
But when i hit synchronise, the space on my drive starts to decrease.

I am mirroring 2 external drives, but when i run freefilesync, it seems to be writing files to my hard drive.
Why is it doing this - it is basically filling up my hard drive.

Thanks.