I ran into a problem when trying to install Windows 7 on a H500s Lenovo PC. I kept getting a blue-screen relating to an ACPI error
Not ACPI Compliant (Error 0x000000A5)
There are a few blogs detailing elaborate ways around this problem such as:
http://bootables.net/lenovo-h500s-bios-update-how-to/
However what no-one seems to have said is that if you still have a working copy of Windows 8 running on the system then you can flash the bios from there instead of creating a boot disk to do it!
To do it from Windows 8:
1: Download http://cdn.bootables.net/uploads/2015/04/IPJY41USA-lenovo-H500s.rar (this is a rar file, so you may need something like WinRAR to open it)
2: Extract the file onto your main drive (keep the folder structure simple, don't do it in your downloads folder for example. I used c:\temp\)
3: Navigate to the folder and find the file called IPJY41USA.exe
4: Right click this and select "Run as administrator"
5: The utility should update the bios - and thats it, you should now be able to install Windows 7
Perhaps this is fairly obvious? But from what I could see no-one in the support forums has mentioned this as a quick way around the problem.
Not ACPI Compliant (Error 0x000000A5)
There are a few blogs detailing elaborate ways around this problem such as:
http://bootables.net/lenovo-h500s-bios-update-how-to/
However what no-one seems to have said is that if you still have a working copy of Windows 8 running on the system then you can flash the bios from there instead of creating a boot disk to do it!
To do it from Windows 8:
1: Download http://cdn.bootables.net/uploads/2015/04/IPJY41USA-lenovo-H500s.rar (this is a rar file, so you may need something like WinRAR to open it)
2: Extract the file onto your main drive (keep the folder structure simple, don't do it in your downloads folder for example. I used c:\temp\)
3: Navigate to the folder and find the file called IPJY41USA.exe
4: Right click this and select "Run as administrator"
5: The utility should update the bios - and thats it, you should now be able to install Windows 7
Perhaps this is fairly obvious? But from what I could see no-one in the support forums has mentioned this as a quick way around the problem.
No comments:
Post a Comment