Option 1: Reset this PC 1. Download DBAN. Whatever these case, once you have a Windows 10 install disc. Boot your PC with the DBAN disc. Boot your PC using the DBAN disc and press the Enter. Securely erase your hard drive. Then, when you’re ready to proceed. Reinstall Windows. This page focuses on methods to completely wiping a hard drive or computer on Windows 10/8/7. When it comes to changing hard drive or giving away a computer, simply deleting files or formatting the hard drive is not enough to ensure privacy, as recovery software makes it possible to recover lost data easily.
Option 1:
Option 2:
Erase External Hard Drive Windows 10
Step 1: How to download official Windows 10 ISO files
How To Wipe Computer Clean Windows 10
Step 2: How to Prepare Bootable Install Media for Windows 10 - DVD, USB or SD Card
Step 3: How to: Perform a clean install of Windows 10
When you upgraded from a previous version of Windows or receive a new computer preinstalled with Windows 10, what happened is the hardware (your PC) will get a digital entitlement, where a unique signature of the computer will be stored on Microsoft Activation Servers. The Windows 7 or Windows 8 genuine license you were previously running will be exchanged for a diagnostics key.
Anytime you need to reinstall Windows 10 on that machine, just proceed to reinstall Windows 10. It will automatically reactivate. You will prompted to enter a product key a couple times through the installation, click I don't have a key and Do this later.
Erase Hard Drive Windows 7
There is no need to know or get a new key, but if you have issues with Digital Licensing or the Activation Troubleshooter, you can utilize an existing Windows 7 or Windows 8/8.1 product key you already ownto reactivate if necessary. or use the reset function in Windows 10.