I upgrade my Inspiron 15, 7548 last night and got the, rather common, Internal Power Failure error during the Windows 10 install. Luckily I found the answer on www.tenforums.com and upgraded the AMD display driver. This eliminated the power failure error but now the PC just crashes without warning after anything from 5 minutes to an hour! What is odd is that the keyboard lights are still on so it can't have crashed completely.
I then have to power down and power up again. Interestingly, the OS doesn't complain and it boots fine. Then it crashes again after a little while.
I've run Windows update, Norton update and Dell update so am now at a loss as to what to do next. Anyone else have any ideas?