Covert MBR to GPT only the Partition

[prasanth_1991]

Hi,

 

I'm currently installing windows 10 on my pc. While installing I receive a message called " Windows can only install on GPT " I know how to convert, but I have another question regarding this issue. What I did is, I bring cmd while installing by pressing Shift + f10.

 

ME on CMD : diskpart

ME on CMD : list disk 

CMD to ME : showing list of disk (It shows only the hard drive not partition)

ME on CMD : select disk 1

CMD to ME : disk 1 is selected

ME on CMD : list partition

CMD to ME : Showing list of partition

ME on CMD : Select partition 1 (My partition contain files and I need to format only one partition)

CMD to ME : Partiton 1 is selected 

My question is If I write clean, does format only the selected partition or entire hard drive ? I really don't want to format entire hard disk, because it contain my 300 gb project file that I done so for. 

 

So please help me out, I need an answer. I would really appreciated If I got a quick replay     

 

Thanks 

 

Warm regards

Prasanth B

[Guest]

If you selected a partition, and you "clean" (format) it, it should only do so on selected partition/disk.

 

But just make sure you pick the correct partition. Not sure, but I thought disks and partitions started with zero, not one...

[xc3ll]

MBR/GPT is applied to the whole drive. All partitions are completely lost.

 

But windows 10 runs perfectly on MBR drives. You just have to boot from your installation media in legacy/bios mode instead or uefi mode. Depending on your mainboard this can be a little tricky, but I prefer the old mbr over uefi. Just a lot less trouble...

[Falconevo]

As above, should only clean the selected disk partitions.  Just be 100% certain you have the correct disk selected before cleaning

[Master Disaster]

@prasanth_1991

EVERYONE IS THIS THREAD HAS GIVEN YOU THE WRONG INFO, DO NOT CLEAN TO DELETE A PARTITION!!!!!!!!

 

Clean will destroy whatever disk you run it on, it deletes the entire partition table and leaves the entire drive in a raw state.

 

Use DELETE PART or DELETE PARTITION to delete just the partition you have selected.

[prasanth_1991]

13 hours ago, Master Disaster said:

@prasanth_1991

EVERYONE IS THIS THREAD HAS GIVEN YOU THE WRONG INFO, DO NOT CLEAN TO DELETE A PARTITION!!!!!!!!

 

Clean will destroy whatever disk you run it on, it deletes the entire partition table and leaves the entire drive in a raw state.

 

Use DELETE PART or DELETE PARTITION to delete just the partition you have selected.

Thanks for the information. I need to install windows 10 one of my partition, while selecting partition it says  " Windows can only install on GPT " how I can convert MBR to GPT on my partition without clean ?

[jj9987]

MBR or GPT applies to the whole drive, not just one partition.

MBR (Master Boot Record) and GPT (GUID Partition Table) are the partition tables, that contain the info, what partitions exist on the disk.

 

To change to GPT, you need to wipe all partitions on the drive, convert and create new partition(s).

 

One reason why Windows may require GPT is if the drive is over 2TB in capacity. MBR does not support drives larger than 2TB.

EDIT: Second reason is that if you are trying to install Windows in UEFI mode, then GPT is also required.

 

So, as for a solution to your problem - Get your data off the drive (using Linux Live USB (Ubuntu for example) and then use GParted to delete all partitions and generate the new GPT partition table on the drive. Then go back to installing Windows.

[Master Disaster]

2 minutes ago, jj9987 said:

MBR or GPT applies to the whole drive, not just one partition.

MBR (Master Boot Record) and GPT (GUID Partition Table) are the partition tables, that contain the info, what partitions exist on the disk.

 

To change to GPT, you need to wipe all partitions on the drive, convert and create new partitions.

 

One reason why Windows may require GPT is if the drive is over 2TB in capacity. MBR does not support drives larger than 2TB.

EDIT: Second reason is that if you are trying to install Windows in UEFI mode, then GPT is also required.

This^^^

[prasanth_1991]

13 hours ago, jj9987 said:

MBR or GPT applies to the whole drive, not just one partition.

To change to GPT, you need to wipe all partitions on the drive, convert and create new partitions.

 

One reason why Windows may require GPT is if the drive is over 2TB in capacity. MBR does not support drives larger than 2TB.

I need to clean selected partition. If I select and clean does it clean entire hard drive or the selected partition ?

[jj9987]

Just now, prasanth_1991 said:

I need to clean selected partition. If I select and clean does it clean entire hard drive or the selected partition ?

From Microsoft TechNet:

 

Quote

 

Clean: Removes any and all partition or volume formatting from the disk with focus. On master boot record (MBR) disks, only the MBR partitioning information and hidden sector information are overwritten. On GUID partition table (GPT) disks, the GPT partitioning information, including the Protective MBR, is overwritten; there is no hidden sector information.

Clean all: Specifies that each and every sector on the disk is zeroed, which completely deletes all data contained on the disk

 

So 'clean' command removes all the data from the drive.

[Master Disaster]

3 minutes ago, prasanth_1991 said:

I need to clean selected partition. If I select and clean does it clean entire hard drive or the selected partition ?

Clean will destroy the entire drive so you need to backup your files before you do it.

 

Might be easier to head into UEFI & look for CSM or Compatibility Support Module (on MSI boards its called Windows 8/10 Install Mode and should be disabled) Enable that then open your boot menu and choose the non uefi boot option. This should allow you to install on a MBR partition.

[prasanth_1991]

13 hours ago, jj9987 said:

From Microsoft TechNet:

 

So 'clean' command removes all the data from the drive.

Thank you I really appreciated your answer

[prasanth_1991]

Thank you so much guys for your all answer