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Windows 7: Problems trying to downgrade from windows 8 to windows 7

17 Nov 2014   #1
Winkinauto

Windows 8 x64
 
 
Problems trying to downgrade from windows 8 to windows 7

Hi, as you can see I'm trying to downgrade windows 8 to windows 7 on my asus, x551MA, laptop with a bootable USB flash driver. I already got Secure Boot disable and CSM enabled. I'm currently having a problem which is that I'm getting a blue screen that says the following;
''A problem has been detected and windows has been shut down to prevent damage to you computer.
If this is the first time you've seen this stop error screen restart your computer. If this screen appears again, follow these step:
The BIOS in this system isn't fully ACPI compliant. Please contact your system vendor for an updated BIOS.
Technical Information:
***STOP:0x000000A5 ( 0x00000000000000x11, 0x0000000000000008, 0xFFFFFFFFFFD1B018, 0x0000000020120913).''
Thanks for reading.


My System SpecsSystem Spec
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17 Nov 2014   #2
matts6887

Windows 7 ultimate 64-bit
 
 

This sounds to me like the hardware in your system is not compatible with windows 7. That message is telling me that your biggest problem right now though is that your bios is not compatible with your hardware most likely because the hardware was designed to run on windows 8 and not 7
My System SpecsSystem Spec
17 Nov 2014   #3
Sugarcake18

Windows 7 pro 64bit
 
 

Like matts6887 your bios is not likely to work you might be able to find an older version that will be compatible but even then it's possible that your drivers will not work for example your ethernet port or wireless card will not work because the drivers will need to be downloaded but you wont have an internet connection you could then again download them from another computer and but them on a flash drive then on the computer is all I could think of hope it works
My System SpecsSystem Spec
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17 Nov 2014   #4
Winkinauto

Windows 8 x64
 
 

Thanks for the reply, really appreciate it ! Then, do you guys recommend me any BIOS that is compatible with windows 7 and 8 ? I'm using a ASUS Laptop x551MA. Thanks again.
My System SpecsSystem Spec
17 Nov 2014   #5
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

Have a look at this: Downgrade Windows 8 to Windows 7
My System SpecsSystem Spec
17 Nov 2014   #6
Sugarcake18

Windows 7 pro 64bit
 
 

Quote   Quote: Originally Posted by Winkinauto View Post
Thanks for the reply, really appreciate it ! Then, do you guys recommend me any BIOS that is compatible with windows 7 and 8 ? I'm using a ASUS Laptop x551MA. Thanks again.
No problem what bios manufacture are you using
My System SpecsSystem Spec
17 Nov 2014   #7
Winkinauto

Windows 8 x64
 
 

Quote   Quote: Originally Posted by whs View Post
Thanks for the reply, I'll make sure to check it tomorrow, I have to go to sleep.

Also, Sugarcake18, my BIOS manufacture is American Megatrends Inc. X551MA.513. and thanks for helping me out.

Good night guys.
My System SpecsSystem Spec
17 Nov 2014   #8
Sugarcake18

Windows 7 pro 64bit
 
 

ASUSTeK Computer Inc. -Support- Driver & Tools - X551MA



the top one under bios should fix your bios and take care of any issues with going down to windows 7 but please make sure you have all network drivers and everything else in place so you don't run into any issues after install. Let me know if you have any more issues after this.
My System SpecsSystem Spec
17 Nov 2014   #9
gregrocker

 

Are you booting the Win7 installer as a UEFI device? This is required to install to UEFI.

What are the settings in BIOS for UEFI, CSM, Legacy BIOS and BIOS Boot Priority order?
My System SpecsSystem Spec
18 Nov 2014   #10
Winkinauto

Windows 8 x64
 
 

Quote   Quote: Originally Posted by Sugarcake18 View Post
ASUSTeK Computer Inc. -Support- Driver & Tools - X551MA



the top one under bios should fix your bios and take care of any issues with going down to windows 7 but please make sure you have all network drivers and everything else in place so you don't run into any issues after install. Let me know if you have any more issues after this.
Thanks for reply, I'm on the BIOS thing, can you tell me the number of it ? Do you mean BIOS 513 ? If so that is the one I currently have right now.
My System SpecsSystem Spec
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 Problems trying to downgrade from windows 8 to windows 7




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