# Windows Key Activation Guide
## Introduction to Windows Key Activation
The Microsoft Windows key is an essential component for activating your operating system. Whether you’ve purchased a new computer or reinstalled Windows, proper activation ensures you have access to all features and receive important updates.
## Types of Windows Keys
There are several types of Windows product keys you might encounter:
– Retail keys: Purchased separately from hardware
– OEM keys: Pre-installed on new computers
– Volume license keys: For businesses and organizations
– Digital licenses: Linked to your Microsoft account
## How to Find Your Windows Key
Before activating Windows, you’ll need to locate your product key:
For pre-installed Windows: Check the Certificate of Authenticity (COA) sticker on your device
For retail purchases: Find the key on the product packaging or in your email receipt
For digital purchases: Check your Microsoft account under “Devices”
## Activating Windows with Your Product Key
Follow these steps to activate your Windows operating system:
Method 1: Using Settings
1. Open Settings > Update & Security > Activation
2. Click “Change product key”
3. Enter your 25-character product key
4. Follow the on-screen instructions
Method 2: Using Command Prompt
1. Open Command Prompt as Administrator
2. Type: slmgr /ipk [your product key]
3. Press Enter
4. Type: slmgr /ato
Keyword: Microsoft Windows key
5. Press Enter to activate
## Troubleshooting Activation Issues
If you encounter problems during activation:
• Verify you’re entering the key correctly (no dashes needed)
• Check your internet connection
• Ensure the key matches your Windows edition
• Contact Microsoft Support if issues persist
## Maintaining Your Activation
Once activated, your Windows license typically remains valid. However, you may need to reactivate if you:
• Make significant hardware changes
• Reinstall Windows
• Upgrade your motherboard
Remember that genuine Microsoft Windows keys provide the best security and update experience. Avoid using unauthorized key generators or questionable third-party sellers.