November 11, 2026

Windows 10 Windows Cannot Be Installed to This Disk GPT Partition Style: Matching the Disk to the Boot Mode

During Windows setup, you select a drive and the Next button refuses to work. A message underneath reads: “Windows cannot be installed to this disk. The selected disk is of the GPT partition style.” On other PCs the message says the disk “has an MBR partition table.” When Windows 10 Windows cannot be installed to this disk GPT partition style appears, setup is telling you that the disk and the boot mode do not match.

Windows can boot in two ways. UEFI mode requires a disk with the newer GPT partition style. Legacy BIOS mode requires the older MBR style. Setup checks which mode the USB stick was started in, then checks the disk.

If you started the USB in Legacy mode but the disk is GPT, or the other way round, setup blocks the installation to avoid an unbootable system.

Starting the USB in the right mode, or converting an link slot empty disk, fixes it.

Why This Happens

The error appears for these reasons:

• The USB was booted in Legacy mode, while the disk is GPT.
• The USB was booted in UEFI mode, while the disk is MBR.
• The disk was used in an older PC with a different layout.
• The boot menu showed two entries for the same USB stick, and the wrong one was chosen.

Most modern PCs should use UEFI with GPT, which is also required for features such as Secure Boot.

Start With These Basic Checks

Start setup in UEFI mode.

1. Restart the PC and open the one-time boot menu, often with F12, F11, or Esc.
2. Look for the USB stick entry that begins with “UEFI:” and choose it.
3. If there is no UEFI entry, enter the BIOS and set boot mode to UEFI, disabling CSM or Legacy.
4. Run setup again and select the disk.
5. If the media was made with an old tool, recreate it with Microsoft’s Media Creation Tool.

Going a Step Further

Convert an empty disk.

1. Back up anything on the disk, because converting with this method erases it.
2. In setup, press Shift + F10 to open Command Prompt.
3. Type diskpart, then list disk, and note the disk number.
4. Type select disk 0, replacing 0 with the correct number, then clean, then convert gpt, pressing Enter after each.
5. Type exit, close the window, select Refresh, and choose the unallocated space.

For a disk that already holds Windows and data, use mbr2gpt instead of diskpart clean.

A Word of Caution

The clean command wipes the whole disk instantly. Double-check the disk number by its size, and disconnect other drives during installation to avoid mistakes.

Final Thoughts

This error means the disk style does not match the boot mode. Boot the USB in UEFI mode for GPT disks, and convert empty disks with diskpart only after a full backup.