Windows update pushed the latest bios to my laptop last evening, the 309. Right after that, the laptop is now unbootable, all attempts give me the "unmountable boot volume" BSOD. I had the OS installed on 4TB samsung evo 870 sata ssd.
If its anything like my older GL502 VY Asus Gaming laptop I had the exact same thing after I updated the BIOS.......googled it and found out that BIOS version was not compatible (somehow someway) with my Samsung 512G Pro SSD......my Sammy SSD was a secondary drive (for games) not the Boot Drive (thats the original M.2 NVMe Drive that came with the PC. 2 choices, either flash BIOS back to previous or replace the Sammy SSD.
Swapped out the Sammy for a Seagate Barracuda SSD and all good, booted up right away.
have the same problem impossible to install windows 11 since the update of the 309. The installation freezes or I have a blue screen I changed the SSD hard drive, changed the ram, changed the SSD connection. I tested the same USB key on another Asus pc, no worries If I make too many installation attempts, the SSD hard drive is no longer recognized in the windows installer. But if I go to the BIOS (EFI) I can see the SSD After several attempts it works. But when I start a download on Steam after a while I have a blue screen But if I start a game no worries