I have found the culprit, update 21H1 needs a BIOS update to install, I am running version 306, i need 311. All previous updates install with no problems (legacy and UEFI). So i am stuck as i cannot...

Thank you dalchina for the reply.

I am upgrading on mains power as the battery is not working and the machine instantly shuts down when not on the mains.

I have already tried the suggestions...

I am problem solving a friends Asus x541ua (I7-7500U, 8GB,) laptop, its battery would not charge. It was running windows 10 20H1, to start i tried reinstalling the battery drivers, after this i tried...