If you’re like most people, you probably don’t think much about how Windows 10 is activated. After all, once it’s installed, you just use it, right? Wrong. Windows 10 activation is a process that helps verify that your copy of Windows is only being used on one computer at a time. This process is important because it helps prevent software piracy and ensures that Microsoft can provide customers with the best possible experience. In this blog post, we’ll explain how Windows 10 activation works and show you how to activate your copy of Windows 10. We’ll also provide some troubleshooting tips in case you run into any problems.

How to Activate Windows 10 without a Product Key?

Assuming you have already installed Windows 10, you can still activate it without a product key. There are a couple methods you can use to do this, and we’ll outline both of them here.

To start, head to the Search bar and type in “cmd.” Right-click on the first result and select “Run as administrator.” In the Command Prompt that opens up, type in the following command and hit Enter:

slmgr.vbs /upk

This command uninstalls the product key from your current installation of Windows 10, which will allow you to enter a new one. Once that’s done, restart your computer and follow the instructions below depending on which method you want to use to activate Windows 10.

If you have a digital license for Windows 10: your computer, allowing you to enter a new one.

To reinstall your product key, type in the following command and hit Enter:

slmgr.vbs /ipk xxxxx-xxxxx-xxxxx-xxxxx-xxxxx

Replace “xxxxx-xxxxx-xxxxx-xxxxx” with your actual product key. It’s also possible to use the slmgr.vbs tool to install multiple keys at once. To do this, just add additional keys after the previous one and separate them by spaces:

slmgr.vbs /ipk xxxxx-xxxxx-xxxxx-xxxxx xxxx

If you upgraded to Windows 10 for free from an eligible device running a genuine copy of Windows 7 or 8.1, or if you’ve already entered a product key that entitled you to a digital license for Windows 10, all you need to do is follow these steps:

  1. Open up Settings and go to Update & Security > Activation.
  2. Click on Change Product Key and enter in the 25-character product key that came with your copy of Windows 10.
  3. Your digital license will be automatically linked to your Microsoft account and you’ll be able to activate Windows 10 without any further input required.
    Note: If you’re having trouble activating Windows 10, make sure you’re connected to the internet and then follow the instructions in this Microsoft support article.

How to Activate Windows 10 with a Product Key?

If you’re running Windows 10, you can activated it using a product key. Here’s how:

  1. Go to Settings > Update & Security > Activation.
  2. Under “Activation,” click Change the product key.
  3. Enter the 25-character product key, and then click Next.
  4. Follow the prompts to complete the activation process.

How to Activate Windows 10 with Command Prompt?

There are times when you need to activate Windows 10 with Command Prompt because you can’t access the GUI. This can be done by opening an elevated Command Prompt and then running the following command:

slmgr.vbs -ipk xxxxx-xxxxx-xxxxx-xxxxx

Replace the x’s with your product key. Once that has been entered, press Enter and then type the following command:

slmgr.vbs -ato

This will now activate Windows 10 with the product key that you entered.

How to Activate Windows 10 with PowerShell?

To activate Windows 10 with PowerShell, you will need to open PowerShell as an administrator. To do this, press the Windows key + X on your keyboard and then select “Windows PowerShell (Admin)” from the menu that appears.

Once PowerShell is open, you will need to run the following command:

Set-ExecutionPolicy Unrestricted -Scope CurrentUser

This command will set the execution policy for the current user so that PowerShell can run scripts. You may see a warning message appear; if so, type Y and press Enter to continue.

With the execution policy now set, you can run the activation script by running the following command:

.\activate.ps1 -SerialKey YOUR_SERIAL_KEY_HERE -ActivationID YOUR_ACTIVATION_ID_HERE -Verbose

Replace YOUR_SERIAL_KEY_HERE and YOUR_ACTIVATION_ID_HERE with your own serial key and activation ID respectively. Once you have done this, press Enter to run the script. The activation process should now begin and you should see a success message appear when it is complete.

How to Activate Windows 10 with Phone?

Assuming you have a digital license for Windows 10 Pro, you can follow these steps to activate Windows 10 with your phone:

  1. Open Settings.
  2. Click on Update & Security.
  3. Click on Activation in the left pane.
  4. Click on the Add a phone link under the Mobile phone section.
  5. Enter your phone number and click Send verification code.
  6. Enter the verification code and click Next.
  7. Follow the instructions to finish activating Windows 10 with your phone

How to Activate Windows 10?

Assuming you have already installed Windows 10, here are the steps to take to activate it.

  1.  Go to Start > Settings > Update & Security > Activation.
  2. Click Change the product key. If you don’t see this option, then you’ve already activated Windows 10 with a digital license and don’t need to do anything further.
  3. Enter your product key, then click Next. Follow the prompts to complete activation.

    If you run into any problems during activation, please contact Microsoft Support for assistance.

How to Activate Windows 10 for Free?

Assuming you have a Windows 10 machine, there are two ways to go about activating it for free. The first is by using a valid product key from a previous version of Windows. If you have a product key from Windows 7, 8, or 8.1, you can enter it during the installation process when prompted. Just make sure you select the “Custom” option when asked what type of installation you want rather than “Express.”

The second way to get Windows 10 for free is by taking advantage of the Assistive Technologies offer from Microsoft. This is specifically for people who use assistive technologies, but anyone can sign up for it. Just head to the Microsoft Accessibility page and click on the “Get started now” button. From there, you’ll need to sign in with a Microsoft account and provide some personal information to verify your identity. Once you do that, you’ll be able to download an ISO file for Windows 10 and create your own bootable media.

How to Activate Windows 10 Pro?

  1. Go to the Windows 10 Pro page on the Microsoft website.
  2. Click on the “Download” button.
  3. Run the downloaded file to install Windows 10 Pro.
  4. Follow the prompts to complete the installation process.
  5. Enter your product key when prompted.
  6. Follow the prompts to activate your copy of Windows 10 Pro.

FAQs About Activating Windows 10

  1. How do I activate Windows 10?

    You can activate Windows 10 by entering a valid product key during the setup process. If you don’t have a product key, you can purchase one from the Microsoft Store or a retail partner.

  2. What happens if I don’t activate Windows 10?

    If you don’t activate Windows 10, you’ll be able to use it for free for a limited time. Once that time expires, you’ll need to purchase a license to continue using the operating system.

  3. Can I still use my computer if I don’t activate Windows 10?

    Yes, you can still use your computer without activating Windows 10. However, you’ll be limited to only basic features and will not be able to personalize your experience or access certain apps and features. Additionally, your computer will display watermarks reminding you to activate the operating system.

  4. How long do I have to activate Windows 10?

    You have 30 days from the time of installation to activate Windows 10. If you don’t enter a valid product key during that time, your copy of Windows will expire and you’ll no longer be able to use it.


Overall, activating Windows 10 is a pretty simple process. All you need is a valid product key and then you can follow the instructions either online or through the Command Prompt. If you run into any issues, make sure to contact Microsoft Support for help.

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