How to know your disk partition type in a few stepps. Let's go.

1 Open Windows File Explorer and right click on COMPUTER or THIS PC for W10 and choose MANAGE.

2 After that a new windows pop-up click on DISK MANAGEMENT.

3 Your computer disk partion appear right click on Disk 0 and choose PRORIETY.

4 A small windows pop-up choose VOLUMES in third column.

5 After that you will see under  PARTITION STYLE  your disk type MBR or GPT.

That's all you have successfully chech your DISK PARTITION TYPE.