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If you receive the “we can’t activate Windows on this device” error try activating Windows with one of the options in this guide.
Option 1: Active Windows with the Changepk.exe Command
If you receive “Unable to Activate Windows” error, try fixing it with these steps:
- Type cmd in the search bar. Then right-click Command Prompt and select Run as administrator.
- At User Account Control confirmation, click Yes.
- At command prompt, type this command. Then press enter.
Changepk.exe /productkey:<product-key>
- The command displays the screen to enter your product key. Type the same product key and click Next.
- When the next screen loads, click Activate.
If this method failed to activate Windows, try method 2 below..
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Option 2: Active Windows with the slmgr Command
Another method to fix Unable to activate Windows error is to activate Windows with slmgr command.
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- JOIN YOUR BUSINESS OR SCHOOL DOMAIN for easy access to network files, servers, and printers.
- OEM IS TO BE INSTALLED ON A NEW PC WITH NO PRIOR VERSION of Windows installed and cannot be transferred to another machine.
- OEM DOES NOT PROVIDE PRODUCT SUPPORT | To acquire product with Microsoft support, obtain the full packaged “Retail” version.
Here are the steps:
- Run command prompt as administrator. At the command prompt, type this command and press enter.
slmgr -upk
The command uninstalls any existing product key. After a short while, you will receive the notification shown in the second image below..
- Once you receive Uninstalled product key successfully, type the command below. Then press enter.
slmgr -ipk <your-windows-product-key>
Just like the previous command, after a short while, it will return the message in the second image below..
Rank #2
- Less chaos, more calm. The refreshed design of Windows 11 enables you to do what you want effortlessly.
- Biometric logins. Encrypted authentication. And, of course, advanced antivirus defenses. Everything you need, plus more, to protect you against the latest cyberthreats.
- Make the most of your screen space with snap layouts, desktops, and seamless redocking.
- Widgets makes staying up-to-date with the content you love and the news you care about, simple.
- Stay in touch with friends and family with Microsoft Teams, which can be seamlessly integrated into your taskbar. (1)
- Restart your PC
Option 3: Call the Microsoft Activation Center
If you have tried all the above and still cannot activate Windows, follow the steps below to contact Microsoft Support:
- Open Global Customer Service phone numbers link.
- Click your region. Then locate your countries phone number and dial it
- Speak to a support agent and let them know that you are having trouble activating Windows
Conclusion
Windows activation is supposed to be straightforward. However, sometimes, it can be pain.
Rank #3
- Comprehensive Solution: This Windows 10 reinstall DVD provides a complete solution for resolving various system issues, including crashes, malware infections, boot failures, and performance slowdowns. Repair, Recover, Restore, and Reinstall any version of Windows.
- USB will work on any type of computer (make or model). Creates a new copy of Windows! DOES NOT INCLUDE product key.
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- Step by Step instructions on how to fix Windows 10 issues. Whether it be broken, viruses, running slow, or corrupted our disc will serve you well
- Please remember that this DVD does not come with a KEY CODE. You will need to obtain a Windows Key Code in order to use the reinstall option
I am confident that you have activated Windows with one of the options discussed in this guide. Let me know the option that worked for you by responding to the “Was this page helpful?” question below.
You may also share with our community by commenting using the “Leave a Comment” form at the bottom of this page.
Rank #4
- [Win OS Install or reinstall] — Boot from the USB to install or reinstall Win 11, 10, or 7 Home & Pro editions. Includes OS installations and reinstallations media plus WinPE Utility Suite.
- [WinPE Repair & Recovery Tools] — Boot into the included WinPE utility suite to backup system and important files, troubleshoot startup problems, repair boot issues, recover data, recover Win User accounts password, and diagnose common PC problems.
- [All-in-One PC Rescue USB] — Combines Win 11, 10, and 7 installation media with PC repair, recovery, and diagnostic tools on one bootable 64GB USB drive, helping you troubleshoot and restore a computer without needing multiple discs or downloads.
- [Support] — Full instructions are included in packaging plus a printable copy of the instructions with troubleshooting information on the device. Also, a video “How to boot from a bootable USB drive.mp4” to help guide you through starting a PC from a USB drive. If you need help using the USB please contact us for assistance, we are here to help.
- [Video] - If you are new to booting from a USB drive or need a refresher see our video "How to boot from USB drive" both in description and on USB device.
Lastly to get more Windows guides visit our Windows How To page.
Quick Recap
Best Value
- COMPATIBILITY: Designed for both Windows 11 Professional and Home editions, this 16GB USB drive provides essential system recovery and repair tools
- FUNCTIONALITY: Helps resolve common issues like slow performance, Windows not loading, black screens, or blue screens through repair and recovery options
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