Windows 10: Windows 10, and MBR?

Hi

I was just reading a post on another forum.

It was said that you can't install Windows 10 on a disk that has a Master Boot Record.

That because it uses a GBR you have to remove all of the partitions and change the boot manager before you install it.

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First off is how the hard drive is set up. You can not install it to a drive with a Master Boot Record (MBR) Windows 10 uses GBR which is far better for large hard drives. GBR supports more than 4 partition entrys and huge hard drives. If you have a hard drive that you want to install it to and it uses MBR, all the partitions must either be deleted or converted to GBR before installing Windows 10.

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I installed my W10 on my second hard drive so (no previous OS on it) I didn't run into any problems.

Is this correct, I didn't see any information about this at the time I was installing?

Anyone have to deal with this?

Mike

:)

 

Window 10 pro problems

Where is the control panel gone in Windows 10?

 

Window 10 pro problems

Found it!!!!!

You right click the start button. Yeah!

 

They don`t have a clue.Attachment 6984

 

Check your hard drive in Disk Management , is windows installed to a GPT or MBR disk. Mine is MBR and always has been.

 

*Ditto

 

You can't install Win 10 on UEFI firmware with secured boot enabled and CSM disabled if the disk is MBR. The disk has to be GPT. But on PCs with BIOS firmware, it shouldn't be a problem.

 

Hi

I can't find anyplace where is says if my hard drive is MBR or GBR?
I looked in Disk Management, and at Disk Properties but I don't see a Volumes tab anyplace.

How did you get to the screen shown above?

The reason I'm interested in this is I don't want to be telling people they can just create a partition and install Windows 10 in a dual boot setup if there is more to it then that.

I didn't have any problems but I have it on a different physical drive then my Windows 8 install.

Mike

 

Device Manager > Disk Drives > Double click on drive > Volume and then populate at bottom.

 

Switch to the Hardware Tab, then click on the drive description and click Properties.

Then switch to the Volumes tab of the new dialog, and click populate... If you have UAC, it will close and open a new elevated one, click populate again.

 

OK, I found it.

Both of my drives including the one with Windows 10 on it have MBR partitions.





So I guess you can have Windows 10 on a drive with a MBR.

Mike

 

Yes, you can... *IF* it's not a UEFI bios with secure boot enabled and CSM disabled.

 

Hi there

CMD prompt (in admin mode)

DISKPART
LIST DISK


Incidently don't confuse SECURE BOOT with UEFI. You CAN of course boot a UEFI enabled W10 -- SECURE BOOT has to be disabled for booting OS'S not stored in the BIOS for example if you want to boot from a USB or boot say a Linux system.

Even on NON UEFI systems I'd make all HDD's GPT apart from the boot one. On a non UEFI system you can't boot from a GPT HDD but all other HDD's can be GPT.



Cheers
jimbo

 

Hi

Ok, I guess that makes sense since part of the instructions for installing it were to turn off Secure Boot, and Fast Boot before doing the dual boot installation.

I am running UEFI but I did turn off Secure Boot.

Mike

 

Mike, I just wanted to ask. What is GBR?