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  • Old post, and one which assumes BIOS firmware to set AHCI mode, but .... superuser.com/questions/954317/win7-turning-on-ahci
    – Hennes
    Commented Jun 14, 2022 at 22:48
  • Old enough not to use an answer, but in a nutshjel. Try boot in IDE mode, If they works regedit "HKEY_LOCAL_MACHINE / SYSTEM / CurrentControlset / Services / msahci" to start. Shutdown. Put AHCI mode back in grub2. Boot and pray.
    – Hennes
    Commented Jun 14, 2022 at 22:52
  • Thank you @Hennes for your reply. I've already applied Mom's advice to Windows, but it stays stuck in IDE mode, because by imparting only the string setpci -s 0:1f.2 90.b=40 boot fails with "error: attempt to read or write outside of disk 'hd0'." - if I omit the string, the chipset in IDE is and in IDE it remains - that's why I think there is a need for more setpci strings, which unfortunately I don't know how to write. Commented Jun 15, 2022 at 15:38
  • To be more precise, a correctly sorted and well populated list of setpci strings - something like the three scripts mentioned circa middle of page at post#7 (which still don't work for me in the original form) but entering the data of my Sony. Commented Jun 15, 2022 at 22:03