how to make os option menu appear in a dual boot pc?

AddRAM said:

It will work, because he installed each OS with the other drive unplugged.

I personally use the Bios method on the X299, I just enable the W7 M.2 in the Bios when I want to use it, and disable the W10 SSD.

This keeps them totally separate from each other. I rarely use W7 so it`s no big deal, and very simple to do.

And you should remove the letter from either OS when you`re booted into either OS, so they don`t see each other, unless for some reason you want them to.

My original intention was to find a way so that the boot option menu to show up .
Other ways are possible but they include more steps to do each time i boot ..




And why should i prefer that the 2 os not see eachother?
Is there a possible harm?

Amina Alomari said:

The problem is that in each hdd i have a partition labeled c and in each one it's the partition that i have installed the os on ...
Both are c ..

In win7 . C goes for win 7 and h for 10
In win 10 its the otherway around .

Drive letters are assigned by the booted OS, not by each partition's disk or the position on the disk. "C" and "H" are just interim designations so that bcdboot or bcdedit can be clear which partitions you're referring to when it reconfigures the boot manager. When the selected Windows partition actually boots, it will take on the drive letters as already assigned in that particular OS's registry.

I use a third-party boot manager so am not fluent in the use of bcdboot or bcdedit, but SIW2 is familiar with those utilities so I trust he knows what he's talking about.

Amina Alomari said:

And why should i prefer that the 2 os not see each other?
Is there a possible harm?

If the OSes can see each other they can corrupt each others' restore points. That affects your ability to use Microsoft System Restore, should that ever be needed.

One other point not yet mentioned is Win10's "Fast Start", which is a form of hibernation. That can utterly ruin multi-boot systems, so it is imperative that you disable Fast Start.

Vineet Garg said:

Hi All,
Greets,
Sir/Madam,
@Amina Alomari :
1) I would like to have some snap shots at ''Disk Management'' to avoid any problems i.e.
Take and post two snap shots of the Disk Management Window as per :
Disk Management - Post a Screen Capture Image - Windows 7 Help Forums
(a) Standard View (b) from Standard Window > click the ''View' > 'Top' > 'disk list'' & snapping of the window.
2) I would like to see one time boot menu entries and their order.
3) And yes 'Fast Startup' in windows 10 & 8 should be switched off in a multiboot with windows 7. Even the 'FAST BOOT' option in BIOS should be disabled if it is there!
4) I also saw some people saying disable 'Secure Boot' for a multiboot of windows 7 with windows 8 or 10. But I think if the multiboot was established and windows 7 is booting normally, its no problem !
5) Keeping the OS partitions invisible from each other seems to be a good idea if you use 'System Restore Points' feature. But I had that problem only in win 7 multiboot with XP & I think it should not happen between Vista & later OS multiboots! Besides, i doubt that just removing the letter will totally separate them from each other! Anyway do not do that before establishing your objective !
6) And yes you need not change drive letters or labels as said by the seniors.
7) Report & let us know. It's achievable and fine.

Thanks & Regards. ...

Hello .
Have a nice day.

I have attached 3 pictures for what you have requested ..
Only that I am not really sure i sent the right picture for boot menu entrirs order.



And i have disabled fast boot option. However i couldnt find secure boot to disable it too.


I am grateful for your patience and help.

AddRAM said:

Whichever operating system you are booted into will be C, it`s perfectly normal.

If you boot into W10 it will be lettered C and W7 will have a different letter.

If you boot into W7 it will be lettered C and W10 will have a different letter.

Etc..

@dg1261, Thank You for the support

Tried to rep you, but no go

So you mean its safe to use the labels as they are in the method mentioned by SIW2?

Use h in win 7 and f in win 10.

dg1261 said:

Drive letters are assigned by the booted OS, not by each partition's disk or the position on the disk. "C" and "H" are just interim designations so that bcdboot or bcdedit can be clear which partitions you're referring to when it reconfigures the boot manager. When the selected Windows partition actually boots, it will take on the drive letters as already assigned in that particular OS's registry.

I use a third-party boot manager so am not fluent in the use of bcdboot or bcdedit, but SIW2 is familiar with those utilities so I trust he knows what he's talking about.




If the OSes can see each other they can corrupt each others' restore points. That affects your ability to use Microsoft System Restore, should that ever be needed.

One other point not yet mentioned is Win10's "Fast Start", which is a form of hibernation. That can utterly ruin multi-boot systems, so it is imperative that you disable Fast Start.

For fast start disabling , you mean the option in boot menu when i open bios settings wh8ch is called "fast boot"

Or its an option i should look for in win 10 control panel?
Becausw i have diabled the one in bios .

Hi All,
Sir/madam,
@Amina Alomari :
1) Only that I am not really sure i sent the right picture for boot menu entrirs order.
Here is a little confusion. What you accessed is 'DEL>BIOS Setup>Boot Menu' while i was asking 'One Time Boot Menu'. As soon as you start your pc, you have to keep on pressing F8 to go into One Time Boot Menu.
To further clarify : Sir @Megahertz07 was talking about the same :
During POST launch boot menu (F8?). See your MB manual to see witch F? launches the boot menu. If you have two OS's on different drives, choose the drive you want to boot from.
But you thought that you have to go into the bios setup & disable the hard drive you don't want to boot in ! To do as per Sir, you have to keep both the hard drives enabled in the bios setup. As soon as you press the power button on your laptop > Keep pressing F8 and choose the drive you want to boot in . I don't think it's a troublesome. You have to mark the difference !
2.I want to have a look on ONE TIME BOOT MENU.
3. You can change 'Secure Boot' status in the BIOS Setup's 'Security' section. You can find it in ''BIOS Advanced Mode >'Main' > 'Security''' As you posted :
https://www.sevenforums.com/attachme...629_235522.jpg
4.'Fast Startup an option i should look for in win 10 control panel?'
Yes, Turn On or Off Fast Startup in Windows 10 | Windows 10 Tutorials
5. 'Becausw i have diabled the one in bios .
Yes, that was 'Fast Boot' in BIOS Options. And also needed to be disabled for windows 7.
6. THE MAIN & PROBABLY THE LAST QUESTION : Sir(s),
OP has 'UEFI+GPT' Windows 10 installation & 'Legacy Bios (Probably)+ MBR' windows 7. Is it achievable & Fine what he/she wants ? Can Windows Boot Manager(s) will show/allow cross compatibility ?
7 @Amina Alomari : Oh, why you didn't install windows 7 64 bit in UEFI+GPT ? It's supported.

Thanks & Regards. ...

Vineet Garg said:

Hi All,
Sir/madam,
@Amina Alomari :
1) Only that I am not really sure i sent the right picture for boot menu entrirs order.
Here is a little confusion. What you accessed is 'DEL>BIOS Setup>Boot Menu' while i was asking 'One Time Boot Menu'. As soon as you start your pc, you have to keep on pressing F8 to go into One Time Boot Menu.
To further clarify : Sir @Megahertz07 was talking about the same :
During POST launch boot menu (F8?). See your MB manual to see witch F? launches the boot menu. If you have two OS's on different drives, choose the drive you want to boot from.
But you thought that you have to go into the bios setup & disable the hard drive you don't want to boot in ! To do as per Sir, you have to keep both the hard drives enabled in the bios setup. As soon as you press the power button on your laptop > Keep pressing F8 and choose the drive you want to boot in . I don't think it's a troublesome. You have to mark the difference !
2.I want to have a look on ONE TIME BOOT MENU.
3. You can change 'Secure Boot' status in the BIOS Setup's 'Security' section. You can find it in ''BIOS Advanced Mode >'Main' > 'Security''' As you posted :
https://www.sevenforums.com/attachme...629_235522.jpg
4.'Fast Startup an option i should look for in win 10 control panel?'
Yes, Turn On or Off Fast Startup in Windows 10 | Windows 10 Tutorials
5. 'Becausw i have diabled the one in bios .
Yes, that was 'Fast Boot' in BIOS Options. And also needed to be disabled for windows 7.
6. THE MAIN & PROBABLY THE LAST QUESTION : Sir(s),
OP has 'UEFI+GPT' Windows 10 installation & 'Legacy Bios (Probably)+ MBR' windows 7. Is it achievable & Fine what he/she wants ? Can Windows Boot Manager(s) will show/allow cross compatibility ?
7 @Amina Alomari : Oh, why you didn't install windows 7 64 bit in UEFI+GPT ? It's supported.

Thanks & Regards. ...

Hello .
Sorry for the misunderstanding .. i think i got it right this time.
I disabled fast boot in w10 too . But again i couldnt find secure boot option in security menu .. maybe my mb doesnt support it.


Regarding your last question, i installed win7 months ago and i suppose by default the hdd was MRB , thats why i had to use another hdd to change it into GPT so that i can install w10 on it without having to change my main hdd and risk losing my data.



Now i am also waiting confirmation from you or SIW2 about the safety to use his method for the dual boot menu.


And i'd like to thank you a lot for your help