I have the same problem. Hope it will be fixed soon.
I got an answer from the Nokia support team which fix the problem. Here the translation of the email from German to English: 1. Open the confi menue and push the Build number several times untill you get the info "you are already developer". 2. Then choose the developer option and select USB configuration. Probably MTP is already selected. Select now charging and than MTP again. Connect the phone via USB to your W10 Computer and it will work.
I have the same problem since Android 8.0 update. The workaround works, but has to be done everytime before the phone is connected to the computer.
PLEASE FIX THIS
Yup. This issue is rather annoying. The MTP needs to be re-activated every time.
Doesnt work for me on win7.
MTP shows only disk with driver. PTP shows photos from internal memory.
Just bought a Nokia 1 for my kid, I have the problem on both Win 7 and Win 10.
Incredibly annoying that the MTP activation must be done every time (even every time the phne locks, even if connected via USB to the PC). I'm pondering sending the phone back.
Sorry GEMINI75, that doesn't work (had already tried before). The only thing that works is the trick mentioned by Johann Student (Developer mode, then MTP setting). But it's not permanent, has to be re-done every time.