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Win7 Pro Installation to ASUS Z270 Mobo


J.D

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My bro has built a new Desktop, basically: I7 6670 CPU (Gen6) onto a Asus Z270 Mobo - Win7 Pro Installed OK but with a UEFI Bios .

 

If he wants a Legacy Bios, Does this mean a re-install of Win7 (format first) to get rid of the GPT / UEFI parts on the SSD .

 

What about the Legacy Bios, where do you get that ? Asus site does not have a Legacy Bios or will the 'New install' create the Legacy Bios ?

 

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yes, now that you have installed win7 on UEFI, that means that it will boot only with UEFI, if you decide to install win7 using legacy bios later, that means that you will have to reinstall the os.

For those who have Asus machine, pressing on "F2" keyboard usually allows to access to bios on Asus machines and that's where you can change the option to legacy bios if you want to install your os with Legacy bios, if you do that also means that you will have to use MBR instead of GPT to be able to get the os installed.

 

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Actually there have been several reports on various forums that if you disable efi boot in the bios and then convert GPT to MBR that Windows will then boot.  The users that did this were using Paragon HD manager to do the GPT to MBR conversion.  

 

Here is one of the threads that discuss this, there are others.  https://www.wilderssecurity.com/threads/how-to-convert-gpt-uefi-to-mbr-windows-bootable.339321/  and the particular post is #22 by SolarLynx.

 

Another source is http://www.terabyteunlimited.com/kb/article.php?id=580#

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19 hours ago, straycat19 said:

Actually there have been several reports on various forums that if you disable efi boot in the bios and then convert GPT to MBR that Windows will then boot.  The users that did this were using Paragon HD manager to do the GPT to MBR conversion.  

 

Here is one of the threads that discuss this, there are others.  https://www.wilderssecurity.com/threads/how-to-convert-gpt-uefi-to-mbr-windows-bootable.339321/  and the particular post is #22 by SolarLynx.

 

Another source is http://www.terabyteunlimited.com/kb/article.php?id=580#

 

i always thought that it was impossible to boot the os from GPT or MBR disk by changing UEFI or bios without reinstalling the os and these links you posted were really interesting and showed indeed that disabling the efi boot or legacy boot and converting GPT to MBR or the opposite allows to boot again from the os but the thing is that i read that it's not really recommended to convert GPT to MBR or the opposite while data are still present in the disk as you take the risk of having serious problems later so i just wanted to indicate this information here so it can serve someone in the future and after that anyone will be free to do it or not.

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