FreeFileSync Forum

I tried that too. Didn't seem to change anything, besides avoiding the creation of lock files.

I did look at your posts. In my case, setting disablelastaccess =1 did not make a noticeable difference. As I said in my message, all my tests were conducted with disablelastaccess =1. In any case, tests were conducted with only one somewhat big file to synchronize. I would not expect disablelastacc...

I use a 256GB USB key to synchronize my various Windows 10 (v1709) computers. Recently, I changed to a 512GB key but this key is unusable with ffs because of slow operation. Both keys are quite good (256GB Sandisk Ultra and 512GB Corsair Flash Voyager Super X2). Here are the puzzling numbers: Both k...