Would it be fine if I get an SSD to install my windows on while having a separate HDD which already has an installation of win

nqr888

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Aug 2, 2009
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Tried to make an account because of this problem only to find out that I have a 6 years old account lol.

Would it be fine if I were to get an SSD to install my windows on while having a separate HDD which already has an installation of windows 7 ultimate?

The background to this question is I recently changed my motherboard and processor which required me to reinstall windows. I've been trying to do just that using a bootable USB with Win 7 Ult but got to the problem of:

"Windows cannot be installed on this disk. The selected disk has an MBR partition table. On EFI systems, Windows can only installed on GPT disks."

I've tried turning off secure boot on my ASUS motherboard but that didn't work. I really don't want to have to reformat my HDD to convert it from MBR to GPT so I thought of getting a new SSD to install windows on. So would it work if I make the SSD to be in the first boot order, or could the older windows be detected and booted down the line, creating problems like giving me a BSOD?

Edit: I realize I should have read other threads first. Would this solution I found be right?

"Remove the HDD, then boot to your Windows 7 disk and install it on the SSD. Then re-connect the HDD. This is because frequently when two drives are present, Windows will install the bootloader on one disk and the operating system on the other, so when you remove what you consider your spare disk, Windows has a problem booting. "

from here: http://www.tomshardware.com/answers/id-2030766/install-win7-ssd-computer-win8-installed-hdd.html

I wanted to know if it works before buying an SSD but I guess it does...? I give permission to any mods or admin to delete this thread.
 
Solution


1. It is highly recommended to wipe the whole drive. There is much more than just the old Windows folder.
The original boot partitions, etc.
And for the Windows install, many, many other folders. /Users/, AppData, etc, etc.

Just taking up space. Start that drive with a clean slate.

2. Yes, your HDD will still work no problem.

nqr888

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Aug 2, 2009
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Is it necessary to wipe the old drive or can I just delete the old windows folder in it?
I also read that my SATA controller needs to be in AHCI mode. Would my HDD still work in that mode?
I've been looking up on that and at the end people seem to need to wipe their HDD after installing their SSD. That would not be ideal for me.
 

USAFRet

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1. It is highly recommended to wipe the whole drive. There is much more than just the old Windows folder.
The original boot partitions, etc.
And for the Windows install, many, many other folders. /Users/, AppData, etc, etc.

Just taking up space. Start that drive with a clean slate.

2. Yes, your HDD will still work no problem.
 
Solution

nqr888

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Aug 2, 2009
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Great news! I managed to install my windows! I think what did it was disabling secure boot, and in the CSM I set all to load only in legacy, not both UEFI and legacy OPROM. I won't be needing that SSD for now but I do still want one in the future. Thanks for the replies USAFRet.