my old usb thumb drives have become unrecognizeable after latest win 11 update

[Microsoft Windows]

After the latest win 11 update 16/1/2025 my old usb thumb drives are no longer recognized by win explorer. For 2 of them when I try to access them I get a message to insert disk into USB drive. This is impossible and frustrating. Another drive wasn't recoginised so I formatted it but when I try to load a file onto it I get this error: "Error 0x800701B1: A device which does not exist was specified" then the usb drive doesn't show up in diskmgmt.msc. Any help would be greatly appreicated, Richard.

Continue reading...