The solution? You need to boot from an external source. Booting from a USB drive allows you to access the hard drive from the outside, giving you total control to wipe, format, or partition it without any operating system interference.
When you boot from a USB, you load a lightweight operating system (like Windows PE, Linux, or a DOS-like environment) entirely into your computer's RAM. This means your internal hard drives are not "locked" by a running OS. They become pure data volumes that you can delete, partition, or format without restrictions. format hdd from usb boot
Select the partitions on your HDD and click or Format . The solution
If the HDD refuses to format, the drive likely has physical damage. Check S.M.A.R.T. status or listen for clicking sounds. No amount of bootable USB magic can fix a mechanically broken drive. When you boot from a USB, you load
How to Format an HDD from a USB Boot: The Complete Guide Whether you are performing a fresh Windows installation, clearing a corrupted drive, or preparing a used PC for sale, knowing how to is a critical skill. Since you cannot format the primary drive (C:) while the operating system is currently running on it, you must bypass the OS and boot into an external environment.
Once the USB boots, you will see the Windows Setup screen. You do not actually need to install Windows to format the drive.