Error message when you boot from the Windows 10 USB/DVD in UEFI mode (see screenshot below): Windows cannot be installed to this disk. The selected disk has an MBR partition table. On EFI systems, Windows can only be installed to GPT disks.
This error can prevent you from installing Windows 10, but fortunately, there are several solutions available.
There are two different way of storing the partitioning information on a hard drive, called MBR (Master Boot Record) and GPT (GUID Partition Table). So what’s the difference between MBR and GPT disks and why do you need to convert MBR to GPT?
MBR, the master boot record disk, uses the standard BIOS partition table, and supports up to 2 TB per single partition in Windows operating systems. It only supports up to 4 primary partitions, so If you want to create more partitions on an MBR disk, you have to change one of the primary partitions into an extended partition. With an extended partition you can create up to 128 logical drives, therefore, extending your limit beyond 4 partitions.
GPT, the GUID partition table disk, uses EFI instead of BIOS, and its volume limit is bigger than MBR disks so you can use it on drives with more than 2TB disk space and create a theoretically unlimited number of partitions. Unfortunately, it can only support Windows 64bit systems from Windows Vista onwards. You can still use GPT disks in 32 bit versions of Windows XP, 2003, 2000, etc.
Removable flash drives are the exception as they are recognized as MBR by default and can’t be converted to GPT.
So you must convert MBR disk to GPT disk. But if you want to use MBR partition table, then boot from the Windows 10 USB/DVD in Legacy BIOS mode.
- Boot up Windows Installation USB
- On the first screen. Hold down SHIFT + F10 or just F10 for starting the cmd (command prompt) .
- If A command prompt Windows will pop up you need to type:
select disk 0 or what number is your HDD
Click the “Next” button. The installation of Windows 10 will begin.
Or alternatively you can delete all the partitions on the Where do you want to install Windows? screen, until you only see Drive 0 Unallocated Space.
Note: Once you have deleted all the partitions from the HDD/SSD, you can also click the “Next” button without clicking the “New” button. All the required partitions are created automatically during the Windows 10 installation.
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