Learn how to find a Windows product key for activation, and when you'll use a digital license instead.

Learn how to activate Windows using a product key or digital license, check your activation status, and link your Microsoft account.

How do I know if I'm running genuine Windows software? Look for key features of genuine Windows software, such as the Certificate of Authenticity (COA), a proof of license label, and an edge-to-edge …

Pelajari cara menemukan kunci produk Windows untuk aktivasi, dan kapan Anda akan menggunakan lisensi digital sebagai gantinya.

However, if a product key is required, it can usually be found in the confirmation email you received after purchasing Windows, or in the box Windows came in. Microsoft doesn't keep a record of purchased …

If you make significant hardware changes on your device, such as replacing your motherboard, Windows will no longer find a license that matches your device, and you’ll need to reactivate …

เรียนรู้วิธีค้นหาหมายเลขผลิตภัณฑ์ Windows สําหรับการเปิดใช้งาน และเมื่อคุณจะใช้ใบอนุญาตใช้งานดิจิทัลแทน

Dowiedz się, jak znaleźć klucz produktu systemu Windows do aktywacji i kiedy zamiast tego będziesz używać licencji cyfrowej.

Tìm hiểu cách tìm khóa sản phẩm Windows để kích hoạt và khi nào bạn sẽ sử dụng giấy phép kỹ thuật số để thay thế.

Oct 14, 2025 · PC Health Check app brings you up to date info on your Windows device health, helping you take action to improve your device performance and troubleshoot performance problems.