Activate Windows - Microsoft Support
WEBLearn how to activate Windows 11 using a digital license or a 25-character product key. Find out how to check your activation status, link your Microsoft account, and troubleshoot activation issues.
Find your Windows product key - Microsoft Support
WEBLearn how to locate your 25-character product key or digital license for Windows 10, Windows 11, Windows 8.1, or Windows 7. See where to find the product key on your device, box, or sticker, or how to contact the manufacturer if you've lost it.
Upgrade Windows Home to Windows Pro - Microsoft Support
WEBLearn how to upgrade from Windows 11 Home to Windows 11 Pro using the Microsoft Store or a product key. Find out how to check your edition, activation state, and purchase Windows 11 Pro.
Get help with Windows activation errors - Microsoft Support
WEBLearn how to troubleshoot and fix common activation errors in Windows 11, 10, 8.1, and 7. Find out how to use the Activation troubleshooter, change product key, or reactivate after a hardware change.
Upgrade to Windows 10 Pro - Microsoft Support
WEBLearn how to upgrade your Windows 10 Home device to Windows 10 Pro, which offers more advanced security and business features. Find out how to access BitLocker, Remote Desktop, domain or Azure Active Directory joining, and more.
Product keys for Windows - Microsoft Support
WEBLearn how to find and use a 25-character code to activate Windows 11, 10, 8.1, or 7. A product key is usually included in the confirmation email or the box Windows came in.
How to activate Windows 10 Pro for Workstations and Windows …
WEBWindows 10 Pro EDU must be activated over the Internet. Learn how to change product key, fix network connection issues, and see the difference between Windows 10 Pro for Workstations and Windows 10 Pro EDU.
Reactivating Windows after a hardware change - Microsoft Support
WEBLearn how to reactivate Windows 11 or Windows 10 after replacing your motherboard or making other significant hardware changes. You may need a digital license, a product key, or a new purchase to activate Windows again.
Product activation for Windows – online & support telephone …
WEBLearn how to activate Windows 11, 10, 8.1, or 7 using an internet connection, automated system, or live support advocate. Find the telephone number for activation support in your region and country.
Using the Windows Activation troubleshooter - Microsoft Support
WEBLearn how to use the troubleshooter to fix common activation issues in Windows 11. The troubleshooter can help if you have a digital license for Windows 11 Pro or Home, or if you recently made a hardware change.