Win 8.1 to 7 downgrade bios not fully acpi compliant

Page 2 of 2 FirstFirst 12

  1. Posts : 6,458
    x64 (6.3.9600) Win8.1 Pro & soon dual boot x64 (6.1.7601) Win7_SP1 HomePrem
       #11

    jamesb1996 said:
    ..... Have been told to install with a dvd but havn't tried this yet. .....
    Win7 UEFI install media on USB must be formatted FAT32

    Have you tried the DVD yet? There isn't a file system issue with DVD install media.
      My Computer


  2. Posts : 3
    Windows 7 x64 ultimate
       #12

    looks like this was never solved precisely. I Am having the same issue and do have install cds. In fact I have win 7 x64 and 32 OEM version with valid keys. I also have an OEM windows 8 cd. The win 8 will load on my dell inspiron 15-3531. But after a HDD issue I wanted win 7 and the NON acpi error pops up. I would load secure boot and win 8 which works and just go through the online update process to win 10 but the bios key in the inspiron is for win 8.1 so the win 8 OEM i have will not validate. I AM STUCK.
      My Computer


  3. Posts : 3
    Windows 7 x64 ultimate
       #13

    Will not get into windows setup
      My Computer


  4. Posts : 3
    Windows 7 x64 ultimate
       #14

    I've also followed the process to set the bios but no dice. It's the InsydeH20 bios. Secure Boot - Disabled. Load Legacy Option Rom - Enabled. Boot list option - Legacy. Still no luck same ACPI error trying to load any version of Win 7
      My Computer


  5. Posts : 1
    Windows 7 64Bit
       #15

    The real ACPI fix!


    I would suggest downgrading the Bios to an earlier version that doesn' throw the ACPI error. Newer Bios's don't support Windows 7.
    Last edited by Barman58; 05 Jun 2017 at 13:32.
      My Computer


 
Page 2 of 2 FirstFirst 12

  Related Discussions
Our Sites
Site Links
About Us
Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd
All times are GMT -5. The time now is 00:06.
Find Us