Trouble installing windows 10 BIOS

[simen236]

I've run into some trouble trying to do a clean installation of windows 10. My system is an ASUS N56VZ laptop with BIOS. The file system of my HDD is NTFS and has MBR partitioning style. After using the Windows tool to create a bootable USB, I can only see an option to boot UEFI installation in the BIOS boot menu. Instead, I downloaded the windows ISO file and tried to use Rufus to create bootable media.

In Rufus I selected "MBR for BIOS or UEFI" and NTFS. Now, BIOS didn't detect the USB stick at all. I tried running Rufus again, now with FAT32, and now BIOS detected both the UEFI installation from USB and the BIOS one. The problem is that only the UEFI one works. If I try to boot the BIOS one, I get the error: "Invalid System Disk".

What's going on? How can I install windows 10 with BIOS?

 

[tman1]

Go into your BIOS and disable secure boot and enable csm.

 

[Hlsgsz]

I've run into some trouble trying to do a clean installation of windows 10. My system is an ASUS N56VZ laptop with BIOS. The file system of my HDD is NTFS and has MBR partitioning style. After using the Windows tool to create a bootable USB, I can only see an option to boot UEFI installation in the BIOS boot menu. Instead, I downloaded the windows ISO file and tried to use Rufus to create bootable media.

In Rufus I selected "MBR for BIOS or UEFI" and NTFS. Now, BIOS didn't detect the USB stick at all. I tried running Rufus again, now with FAT32, and now BIOS detected both the UEFI installation from USB and the BIOS one. The problem is that only the UEFI one works. If I try to boot the BIOS one, I get the error: "Invalid System Disk".

What's going on? How can I install windows 10 with BIOS?

Go into your BIOS and disable secure boot and enable csm.

this. and in the boot section eherever it sais "UEFI ONLY" change that to "legacy first"

 

[simen236]

Go into your BIOS and disable secure boot and enable csm.

My BIOS has no secure boot or csm options. Why is my old Acer Aspire laptop able to boot from USB formatted with NTFS and not my ASUS laptop? "Legacy" was also enabled by default.

 

[Hlsgsz]

Go into your BIOS and disable secure boot and enable csm.

My BIOS has no secure boot or csm options. Why is my old Acer Aspire laptop able to boot from USB formatted with NTFS and not my ASUS laptop? "Legacy" was also enabled by default.

Are you by any chance trying to use a usb3 port to do this? If so, move to a usb2 port, and remember to always prefer 2 on win installs. If there is no usb2, make a dvd.

 

[simen236]

Go into your BIOS and disable secure boot and enable csm.

My BIOS has no secure boot or csm options. Why is my old Acer Aspire laptop able to boot from USB formatted with NTFS and not my ASUS laptop? "Legacy" was also enabled by default.

Are you by any chance trying to use a usb3 port to do this? If so, move to a usb2 port, and remember to always prefer 2 on win installs. If there is no usb2, make a dvd.

Yes. I will burn it to a DVD instead then, as I only have USB3 ports.

 

[Hlsgsz]

Go into your BIOS and disable secure boot and enable csm.

My BIOS has no secure boot or csm options. Why is my old Acer Aspire laptop able to boot from USB formatted with NTFS and not my ASUS laptop? "Legacy" was also enabled by default.

Are you by any chance trying to use a usb3 port to do this? If so, move to a usb2 port, and remember to always prefer 2 on win installs. If there is no usb2, make a dvd.

Yes. I will burn it to a DVD instead then, as I only have USB3 ports.

There you go
I inferred that you have data on your hdd and you can't wipe it. Is that correct?(I'm asking cuz it would be a good idea to wipe it and go for uefi mode if you can)

 

[simen236]

Thanks a lot!

No, the first thing I actually did was wiping the HDD 😉 So, I burnt the ISO to DVD, and what do you know? I now have both options; to either launch the UEFI installation or the other one. I tried installing the UEFI one earlier, but couldn't access UEFI Firmware Settings or BIOS then, so now I decided to go for the other one. Hopefully, I will be able to access BIOS after the installation.

 

[Hlsgsz]

Thanks a lot!

No, the first thing I actually did was wiping the HDD 😉 So, I burnt the ISO to DVD, and what do you know? I now have both options; to either launch the UEFI installation or the other one. I tried installing the UEFI one earlier, but couldn't access UEFI Firmware Settings or BIOS then, so now I decided to go for the other one.

Go for uefi, then follow this guide from "To manually wipe a drive and convert it to GPT:"
https://technet.microsoft.com/en-us/library/dn336946.aspx

EDIT: Careful, you need to wipe the whole drive for this, not just the c: partition.

 

[Hlsgsz]

After that, when you have to select where to install, hit "new" and set the size you want for your C: drive. It will create 4 partitions and select the biggest one. Just hit next. You will partition the rest of the drive in windows.

 

[simen236]

I did do that, the only difference was I made the 4 partitions in diskpart instead. I couldn't launch launch UEFI Firmware Settings or BIOS after doing this though, so I think I'll just stick with BIOS and MBR partitioning for now.

 

[Hlsgsz]

I did do that, the only difference was I made the 4 partitions in diskpart instead. I couldn't launch launch UEFI Firmware Settings or BIOS after doing this though, so I think I'll just stick with BIOS and MBR partitioning for now.

thaths the thing with eufi, it boots very fast. But only fast enough that you cant access the bios only if you select "Fast boot" in it. You can have uefi and access the bios via key.
But, to be honest, unless you're on an sdd, the 5 seconds boot advantage aint gonna be noticeable. So yeah, go for MBR until you get an ssd.