If so, reinstall the motherboard driver files from your manufacturer's site. W10 has lately been replacing driver files on some computers and causing problems like this and with video. The only fix is replacing the wrong W10 driver files with the correct ones from your computer manufacturer, or the motherboard manufacturer's site.
I have two Toshiba external 2tb drives connected via my pc usb ports. They have both stopped being recognized by the pc after working for several months. Both drives work on other pcs. They are not recognised by disk manager but show up in device manager as a mass storage device. I have tried other usb sockets on the pc but nothing works. The usb sockets work fine for everything else. I have reinstalled windows 10, the drivers, and the bios. They both try to start up, spin and then make like a pinging sound. They then repeat this over and over.
I would be grateful for any help. I have now spent days on this and it becoming very frustrating.
My motherboard is an Asus M4A78LT-M LE. Thanks.