Windows Wipe Disk Online

If you want to wipe the C: drive (the drive where Windows is installed), the easiest method is using the "Reset This PC" feature. This is standard for Windows 10 and Windows 11.

For secondary internal drives, external hard drives, or USB sticks, you can use the diskpart utility via the Command Prompt. This is a powerful tool built directly into Windows. windows wipe disk

Boot from USB → Erase Disk → ATA Secure Erase → All cells reset instantly. If you want to wipe the C: drive

: Type select disk X (replace X with your disk number). Secure Wipe : Type clean all and press Enter . external hard drives