For OS activation, the license is often linked to your motherboard. If you reinstall the software on the same machine, it will activate automatically as soon as you connect to the internet.
If a crack tool requires you to disable your antivirus , you are likely installing malware. A legitimate crack doesn't need admin rights to disable your security; it just works. If it asks you to turn off Defender, walk away. how to activate any software without product key
When you purchase software from an official store (like the Microsoft Store or Apple App Store), the license is automatically linked to your email address. For OS activation, the license is often linked