How Do I Activate Windows 10 Legally?

Can I activate Windows 10 for free Legally?

Is Windows 10 Illegal Without Activation? No. Microsoft now allows users to use Windows 10 for free and without the need to activate your PC. Just that, there will be a watermark and some customization features will be disabled under the free version.

How do I activate Windows 10 without a product key?

Case 2: Activate Windows 10 Professional without product key

Step 1: Run Command Prompt as administrator. Step 2: Execute the commands and press Enter at the end of each line. Step 3: Press Windows + R key to invoke Run dialog box and type “slmgr. vbs -xpr” to confirm whether your Windows 10 is activated or not.