Ventoy modifies MBR? Bricked USB drive

[jakesalomon]

Status update:

1. I ran ventoy with the Acronis services stopped.  No error but it still seemed to be a totally empty drive.
   
2. I gave up in Windows and ran the Linux version of Ventoy.  The results looked similar and I was about to give up.  But...
   
3. Running the "disks" utility from the Linux "Start" menu I discovered that there is indeed a boot partition on the USB drive.  Still withing Linux, I copied a bunch of downloaded .iso files from my Windows partition to the Ventoy drive, as directed by  ThioJoe in the video.
   
4. I shut down the system and rebooted with the USB in place:  VOILA! A boot menu with a bunch of useful emergency boot systems, like 2 versions of Hirens, Norton emergency boot, etc.
   

I don't know if I would have been successful with the Windows version but without a partition utility in Windows I could not tell there was anything there.

Note: I have marked the subject line SOLVED.

Thank you for the suggestions. 

-- Jake S