How to Partition Hard Drive in Windows 11,10,8
Press Windows + X on your keyboard and select Disk Management from the menu.
Alternatively, you can search for "Disk Management" in the Windows search bar and select Create and format hard disk partitions.
Shrink the Volume:
In Disk Management, you will see all your drives and partitions.
Right-click on the C Drive (or the drive from which you want to create a new partition) and select Shrink Volume.
Windows will then calculate the available shrink space.
Enter the amount of space you want to shrink (in MB). For example, if you want to shrink 100 GB, enter 102400 MB.
Click Shrink.