Solution to mobile disconnecting during file transfer to PC using USB cable. Select Transferring Images via a PTP connection on mobile.
Window 10
Settings
Power Options
Change plan settings (right to selected plan - under preferred plans)
Change advanced power settings
USB Settings
USB selective suspend settings
Settings : Disabled
Successfully transferred using Adobe Bridge.
Find the mobile in Adobe Bridge. This will find all the images incuding camera and WhatsApp.
Deleted the images manually from the mobile.
Videos didn't get transferred