Non-ACPI hardware/BIOS, can I patch acpi.sys or similar to boot Win7?

I am trying to downgrade a dell inspiron 3531 from 8.1 to 7 by using a memory stick but when booting from from the usb stick it loads files and just comes up with bios not fully acpi compliant error. Have been told to install with a dvd but havn't tried this yet. Read a few threads about this error...

I purchased a new ASUS laptop with Win8. I wanted to replace it with Win7. I wiped, formatted and partitioned the HD. I changed the BIOS so it boots from the DVD. I put my 7 disc in and started. A message says it is loading files. In a minute or so I get the Blue Death Screen with the...

I've tried to understand about ACPI & SLIC BIOS system but................So can you tell me how different between these system?

For about 5 weeks my pc would not boot up properly and i eventually discovered that one of my ram chips was faulty so i replaced it and now works only upto 3 gig with windows 64 bit but when i install the 4th chip i get a Bsod with the message this bios is not Acpi compliant so i went to the...

I have Toshiba satellite L300 upgraded from Vista to Windows7 which now freezes on windows welcome screen...only if the charger is plugged in at start-up. NO problems on battery alone.No problems in safe mode. If running on battery alone all is fine until plugging in charger and screen will freeze...