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It's an old mainboard and it can't boot from USB, because boot from HDD includes the usb and hdd option.

So, if I choose usb, HDD won't work. I have to format this computer with just floppy disk or cd/dvd. I've got an ISO that has a size of 6 GB (Windows 7 ISO). But DVD is just 4.7 GB. I got 2 empty DVD so how can I burn this large iso to 2 DVD. And will it work?

Basically I tried Winrar > Adding Archive technique but I couldn't.

I split it 3 gb but first rar show it's 5 gb, second is 1 gb. I don't know why it happened. I'm also not sure if this is a viable solution.

CaldeiraG
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1 Answers1

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It's an old mainboard and it can't boot from USB, because boot from HDD include the usb and hdd option. So, if I choose usb, HDD isn't work

Changing the boot mode really shouldn't prevent the HDD from working at all. Most likely it just means the HDD won't be used for booting, but it'll still work in the actual OS. (Most old motherboards which can't boot from USB don't offer the option at all...)

If that's the case, there is no problem – set it to boot from USB first; start the installation; before letting the installer reboot, set it to boot from HDD again.

I've got an ISO that 6 GB (Windows 7 ISO)

Official Windows 7 ISOs from MSDN or VLSC aren't that large – they're usually 2.9 to 3.5 GB.

Did you make a combined 32/64-bit variant, or did you download something weird from somewhere weird? Consider downloading an official unmodified ISO image instead; there are websites archiving those.

DVD is just 4.7 GB.

You can use a dual-layer disc (DVD+R DL), which is 8.5 GB.

I got 2 empty DVD so how can i burn this large iso to 2 DVD.

You cannot do it without modifications.

It's possible to split the largest file (Windows .wim image) into multiple pieces, and Microsoft actually has some kind of instructions for doing so.

However, because you don't have any alternative installer to boot from, you'd need to carefully rebuild the "first" image (e.g. using ImgBurn), taking care to preserve the bootloader image (eltorito) and everything else – just replacing the .wim with a split .swm part.

Basicly I tried Winrar>Adding Archive technique but I couldn't. I split it 3 gb but first rar show it's 5 gb, second is 1 gb. I don't know why it happened. I'm also not sure if this is work.

It won't. The PC firmware won't be able to boot from a RAR archive, and Windows Setup won't be able to find its own files inside a RAR archive either.

grawity
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