If you want to activate Windows 11, this guide explains how to check and manage Windows activation using a built-in Windows tool. The process is quick, requires no third-party software, and can be completed using Command Prompt.
In this guide, you will learn how to use Windows activation commands such as slmgr /rearm, how to restart Windows after running the command, and how to check your activation status. Keep in mind that this method does not provide permanent activation and a genuine Windows license is required for permanent activation. You can read more about official licensing policies on the Microsoft Learn Licensing Guide.
slmgr /rearm command resets the Windows activation timer. It does not provide permanent activation. For permanent activation, use a valid Windows product key or genuine Microsoft license available at the Official Microsoft Store.
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Step 1 — Open Command Prompt to Activate Windows 11
First, you need to open Command Prompt with administrative privileges before using the Windows activation command.
- Click the Windows search bar.
- Type cmd.
- Right-click on Command Prompt.
- Select Run as administrator.
- Click Yes on the confirmation prompt.
Step 2 — Run the Windows Activation Command
With Command Prompt open as administrator, type the following command and press Enter:
slmgr /rearmWindows will process the command and display a confirmation message. This usually takes only a few seconds. For a detailed list of administrative commands, refer to the Microsoft Slmgr Command Documentation.
Step 3 — Restart Your Computer
After running the command, you must restart your PC for the changes to take effect.
- Save any open work.
- Close all programs.
- Click Start → Power → Restart.
- Wait for Windows to reboot completely.
After the restart, Windows will apply the activation timer change.
How to Check Windows 11 Activation Status
After you activate Windows 11 or make changes to your activation configuration, you can check the current activation status directly in Windows settings or via official support steps outlined in the Microsoft Windows Activation Support Page.
- Open Settings (Windows + I).
- Go to System → Activation.
- Check the activation status shown on the screen.
You can also run the following command in CMD to see additional licensing information:
slmgr /xpr
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Pros and Cons of Using slmgr /rearm
Before using this method to manage Windows activation, it is important to understand its advantages and limitations.
Pros
- Uses only built-in Windows tools.
- No additional software is required.
- Takes only a few seconds to execute.
- Does not delete personal files.
- Can reset the Windows activation timer.
Cons
- Does not provide permanent activation.
- Microsoft limits the number of times the command can be used.
- Requires administrator privileges.
- It is not a replacement for a valid Windows license.
Final Tips to Activate Windows 11 Correctly
If you want to activate Windows 11 correctly, keep the following points in mind:
- Always run CMD as administrator.
- Restart your PC after running the command.
- Do not repeatedly run the command unnecessarily.
- Keep a valid Windows product key for permanent activation.
- Check your activation status regularly.
- For long-term use, purchase a genuine Windows 11 license.
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Common Questions About Activate Windows 11
Is this method legal?
The slmgr /rearm command is an official Windows command. However, it does not provide a permanent license, and using Windows permanently without a valid license violates the Microsoft Software License Terms.
Does this activate Windows 11 permanently?
No. The command resets the activation timer. Permanent activation requires a valid Windows product key or genuine Microsoft license.
How many times can I use slmgr /rearm?
The number of available rearms depends on the Windows edition and licensing configuration. You can check the current licensing information with Windows licensing commands.
Does it work on Windows 10?
The slmgr /rearm command is available in Windows 10 and Windows 11, although its behavior depends on the licensing configuration.
What if the command doesn’t work?
Make sure that you opened Command Prompt as administrator. If the problem continues, you can run slmgr /dlv to display additional licensing information.
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Conclusion: Activate Windows 11 Correctly
If you need to activate Windows 11, the slmgr /rearm command can be useful for resetting the Windows activation timer on supported installations. It is a built-in Windows command and does not require third-party activation software.
However, slmgr /rearm does not permanently activate Windows 11. For permanent activation, you should use a valid Windows product key or a genuine Microsoft digital license.
By following this guide, you can check your Windows activation status, understand how the activation timer works, and use the appropriate licensing method for your Windows 11 installation.
