help Windows won't boot unless booting Linux

[ZolaKluke]

Hi for the past 2 days I've been trying to help diagnose my mate's PC problems and we're absolutely baffled, basically when he tries to boot Windows 10 it'll freeze on the boot logo after a few seconds no matter what, same happens with the Windows Media Creation Tool, however I got him to make a PopOS Linux USB and it boots into the live environment no problem, then when he clicked reboot his PC boots into Windows without a problem. So I got him to do a full shutdown and when he turns the PC back on same issue. So we would love some help or advice because we're totally lost.

Edit: It does boot into safe mode though

Edited July 31, 2020 by ZolaKluke

[The Sloth]

Reinstall your windows from a flash drive, do you have your files backed up? 

[ZolaKluke]

No he doesn't have the files backed up, he's fine with just booting the Linux USB and into Windows for now I guess

[ZolaKluke]

Okay so doing a bios update somehow fixed it works flawlessly now