how do I upgrade to windows 11 pro from a license I had on an old computer

Question

i have an old computer that I want to use my old windows 11 pro license - how do I upgrade my machine to windows 11 pro

Answer 1

To upgrade to Windows 11 Pro using a license from an old computer, you can follow these steps:

1. Check if your old license is valid: Make sure that the Windows 11 Pro license you had on your old computer is still valid and can be transferred.
2. Prepare your new machine: Ensure that your new machine meets the minimum system requirements for Windows 11. This includes having a compatible processor, sufficient RAM, and storage space.
3. Install Windows 11: If you haven't already installed Windows 11, you can download the installation media from the Microsoft website and create a bootable USB drive.
4. Activate Windows 11 Pro: Once Windows 11 is installed, go to Settings > Update & Security > Activation. Here, you can enter your old Windows 11 Pro product key to activate the system. If the key is valid, it should upgrade your installation to Windows 11 Pro.
5. Follow any prompts: Complete any additional prompts that may appear to finalize the activation process.

If you encounter any issues during the activation, you may need to contact Microsoft Support for assistance with transferring your license.

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References:

• Upgrade Windows devices to Windows 10 or 11 Pro
• Windows edition upgrade

Answer 2

Hi Paul Gregoire,

Welcome to Microsoft Q&A!

To better understand and help with your case, I'd like to ask if the license was previously used on another PC, and what is the current version of the old PC that you want to upgrade from?

In the meantime, I can suggest some options below based on different scenarios. Feel free to correct me or/and add more details if needed! This first answer may not solve the issue immediately, but we can definitely work together to figure it out!

Now, in case you want to transfer a used license: Reusing your existing Windows 11 Pro license on another PC is possible, but subject to some specific conditions. You need to check the type of the license first. On the computer you had it on (if still accessible):

• Open Settings > System > Activation > Activation State
• Confirm if it says "... activated with a digital license"
• Then search and open Command Prompt as Administrator
• Type: slmgr /dli > press Enter and check the result:
  • If it says "RETAIL" then the license is transferable
  • If it says "OEM" then it's tied to original hardware
  • If it says "Volume" then it's Enterprise edition

If the key hasn't been used, then it's even better. On the old PC you want to upgrade, confirm if you’re running Windows 11 Home or another edition. You would need to check if the PC is qualified for Windows 11 if it hasn't been upgraded. Here's what to do:

1. Download the PC Health Check app and run it:
   1. It will tell you if you're qualified
   2. If you're not, it will say what you're missing
2. Once you're in Windows 11, open Settings > System > Activation
3. Click Change product key and enter your Windows 11 Pro key
4. Confirm and Windows will upgrade features without reinstalling

We look forward to hearing from you and reviewing the information. If you see an error number or message, or get stuck at any steps, please let me know. It'd be helpful for us to deduce what should be done!

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