Compaq PC running Win 10 home edition (upgraded from Win7 ) refuses to recognise some ( not all ) previously installed USB devices ( iPhones, printers, HDD, thumb drive, cameras etc) From reading online appears to be linked to Media Transfer Protocol which does exist in the Windows INF folder. Have tried un-installing/re-installing these devices, updating drivers nothing seems to work. Utterly out of ideas of how to fix. Any assistance would be appreciated
If it does, then some system process or device driver is the culprit.
If this is the case, then lookup guides for debugging this on Windows 10.
Likely a problem with an old Win7 driver which is somehow incorrectly interacting with Win10.
Might be quicker to backup all your data + do a fresh Win10 install + restore your data.