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Windows 7: Can I blast away EFI OS on second drive without bad Juju?

17 Apr 2012   #11
FuturDreamz

Windows 8 Pro (32-bit)
 
 

Quote   Quote: Originally Posted by emaraszek View Post
I'm referring to the new style of clickable boot menus that appear in windows 8, which is what it sounded like you were referring to in your original post. I'm not sure if you're now referring to BIOS boot menus or windows boot menus. A windows boot menu may appear if, for example, you shut down your computer the wrong way, have two operating systems loaded on the same disk, etc. This is the menu that will offer options such as safe mode and recovery. The BIOS boot menu would be something that appears if, for example, you repeatedly hit F12 (standard on Dell PCs) when you first power up the machine. This will give you the option to boot from a hard drive, optical drive, USB, network boot, etc. Could you clarify whether the menus you're referring to are BIOS menus or windows menus? I've just never seen a BIOS menu call anything "windows boot" which leads me to believe you're actually talking about a windows boot menu. If that's the case, the windows 8 boot menus are the ones that are efi-esque (clickable), while the windows 7 menus are white text on a black background and are keyboard navigable only.

At any rate, there should be no reason to unplug any drives during this process especially since these installations are on two separate physical drives and not just separate partitions. Once you get back to me on these menus I can give you more specific advice depending on your unique setup.
I'm referring to the BIOS boot menu. Newer motherboards are capable of having a GUI in the motherboard configuration interface, but mine looks exactly like the older BIOS style. No clicky.

The menus are when I hold DEL on startup to get to the motherboard configuration interface, then I tab over to the boot override menu. Normally it just lists hard drives, disk drives, and a couple other things i don't use; but now it has an entry that says something like "Windows Loader." I don't recall exactly what it says, and i'm at school right now so i can't check.


My System SpecsSystem Spec
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17 Apr 2012   #12
emaraszek

Windows 7 Ultimate x64
 
 

That would have been my next question: whether or not you had an efi board. The fact that your board has named that boot option is interesting, I haven't seen that before.

My advice at this point would be to go ahead and wipe out that partition and then make sure that this now data-only disk is unmarked as active (you can do this in disk management). You may also need to change the priority of your boot devices in the BIOS so that the disk with the windows installation is where you want it to be, presumably first.

Like I said, I had a dual boot with 7 and 8 (7 was installed first) but they were both on the same physical disk. When I installed 8, it's boot loader took priority over 7's and I had to click on which OS I wanted to boot to. When I had enough of 8 I simply deleted its partition and everything went back to the way it was before with 7 only. As you can see, even with the two on the same disk there weren't any issues after one was removed. In your situation this shouldn't even be a concern for you because you were able to isolated the installations with an additional layer of physical separation.

Let me know how it goes!
My System SpecsSystem Spec
17 Apr 2012   #13
gregrocker

 

Quote   Quote: Originally Posted by emaraszek View Post
We were specifically told that the boot loaders are isolated from each other and are located on two separate disks. Hence there is no relation between the installations and no need to physically change anything
We go by what flags are where. Normally System Active flag on Win7 boot partition would assure it's HD will boot on its own when set first HD to boot. However there are enough novel variables here - EFI mobo, brand new OS which configures Dual Boot differently - that I only wanted to err on the side of caution by having OP test that Win7 HD would boot on it's own first.

Once you handle several thousand of these you inherit a sense of caution.
My System SpecsSystem Spec
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17 Apr 2012   #14
emaraszek

Windows 7 Ultimate x64
 
 

He specifically said that he didn't have an EFI board. He also specifically said that the two operating systems are on different physical disks and have different boot loaders, ergo no interaction between the two has taken place. Speaking from experience with the exact same situation, I am providing the steps that I took to a successful end result.

If you're implying that I don't have sufficient experience to be addressing this issue, rest assured I am a respected IT professional working at a large university - I think I know what I'm talking about
My System SpecsSystem Spec
17 Apr 2012   #15
FuturDreamz

Windows 8 Pro (32-bit)
 
 

It is an EFI board. That's how I'm able to boot from my second drive. Just that instead of having a graphical interface with mouse support, mine looks like an old BIOS motherboard.
My System SpecsSystem Spec
17 Apr 2012   #16
FuturDreamz

Windows 8 Pro (32-bit)
 
 

This is what I'm referring to. sorry the picture is so shitty, Plasma + camera = bad.


All I want to know is, If I take out the boot partitions, will this menu go away? or will the bootloader continue to look for this partition?
My System SpecsSystem Spec
17 Apr 2012   #17
FuturDreamz

Windows 8 Pro (32-bit)
 
 

Also: I went to Disk Management today to find that the two disks have swapped O.o
My System SpecsSystem Spec
17 Apr 2012   #18
FuturDreamz

Windows 8 Pro (32-bit)
 
 

Seems the EFI partition does not want to be deleted.
My System SpecsSystem Spec
17 Apr 2012   #19
FuturDreamz

Windows 8 Pro (32-bit)
 
 

Reset my motherboard to default configuration, but forgot to reset SATA to AHCI mode. Windows 7 failed to boot, and after setting it to AHCI I'm at the attempting repairs screen.
My System SpecsSystem Spec
17 Apr 2012   #20
gregrocker

 

Why are you resetting BIOS to defaults? I don't think it is wise given we are dealing with mixed MBR/GPT disks on an EFI mobo.

Is there a choice to Start Windows normally or just Repair? As long as Win7 HD is still set first HD to boot it should start if you know for sure it was installed in AHCI mode.

To delete the EFI System partition:

Type CMD in Start Search box, rightclick result to Run as Admin.

Type DISKPART
LIST DISK
SEL DIS # (replace # with the GPT disk number as seen by List Disk)
LIST PART
SEL PART # (replace # with the EFI System Partition number as seen by List Partition)
DELETE PARTITION OVERRIDE
EXIT

Close Command Prompt, Create your partitions in Disk Management
My System SpecsSystem Spec
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 Can I blast away EFI OS on second drive without bad Juju?




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