Windows 10, Briefcase, usb flash, workaround, from briefcase to folder

    I have a Windows 10 Dell desktop, older Toshiba laptop Windows 10 (former W8, I think), and a work Dell laptop that's Windows 7.
    For years, have used the MSoft Briefcase and a flashdrive. Can't grasp why it was cut from W10, but it was.
    Recently, I put the flash in the home Dell desktop to update/sync, and I got a prompt that I think was related to what to do when a drive was utilized, and I think I hit 'view folders' etc.
    Alas, suddenly, the home Dell desktop stopped recognizing the briefcase, and turned it into simply a folder.
    The same briefcases remained intact in the flash, in the older Toshiba laptop, and the work Dell laptop.
    Googled, and found the workaround for Windows 10 and briefcases, two tweaks/downloads to enable the briefcase to be added to the new context menu.

www.tenforums.com/.../24426-add-briefcase-new-context-menu-windows-10-a.html

https://www.tenforums.com/tutorials/24426-add-briefcase-new-context-menu-windows-10-a.html

And

winaero.com/.../

    Never worked. For two days.
    Tried it on the Toshiba laptop, also W10, that was showing the briefcases, and it worked on the first try.
    Not sure if it's a Dell issue or W10 issue. I don't mess with much, not smart enough.

    But I can'f figure out why one W10 computer accepted the workaround and the other didn't. I'd donate to the Gates Foundation to get the briefcase back.