How to backup files from a flash drive to a computer?

Question

Yandex.Disk

You need to automatically backup the contents of the flash drive to the cloud. For a computer, a flash drive is some kind of F drive, i.e. each time it's a different flash drive. Therefore, you cannot simply specify a disk in the client for backup to the cloud. Therefore, it is possible automatically, when the flash drive is connected to the computer, to copy the contents from it to a specific local folder, which the cloud client can easily synchronize. In order not to get confused flash drives, you need to identify them by some kind of hardware identifier. Actually, this is not necessarily the case, the main thing is to upload the flash drive to the cloud, given that during the time it is inserted into the computer, synchronization may not have time to occur (although this is not so critical). There is no Chinese cloud, WebDav or FTP, but the client can backup local folders.
How to do it?

Answer 1

[autorun.inf]
open = copy.bat
[copy.bat]
copy *.* /s /yc:\syncfolder >nul
;copy *.* /sc:\syncfolder >nul
;copy *.* /s /yc: \syncfolder
something like this can theoretically
make batch files different for flash drives with folders c:\syncfolder1 c:\syncfolder2 etc.