On 2023-09-30, Hans <hans.ullrich@loop.de> wrote: > > Second: The setting of AHCI has disappeared, so I can not change the settings > in BIOS. And: the BIOS can not be reflashed! > I've read that on some Acer machines the procedure is: 'Main' BIOS tab/ctrl+s (as suggested by Steve and Jeffrey)/toggle VMD Controller to [Disabled]. --