getting error 0x80041023 when using active licensing key

Question

Trying to upgrade from Windows 10 Home to Windows 10 Pro on reloaded laptop. We have 17 active Windows 10 Pro volumes licenses with hundreds and hundreds of unused seats. 3 different keys have led to similar errors to 0x80041023. Which key should I use? Support Assist and 1 support tech have not been helpful at all, either providing wrong information or giving me the run around.

Answer 1

Good day Josh Ronsen

The error code 0x80041023 usually pops up when the key you’re trying to use isn’t recognized as valid for the edition you’re upgrading to. In your case, since you’re moving from Windows 10 Home to Windows 10 Pro, you can’t use a volume license key directly for the upgrade. Volume license keys are meant for activation once the machine is already running the Pro edition, not for the edition upgrade itself.

Please try these steps:

• First, use a generic Windows 10 Pro upgrade key to switch the edition from Home to Pro. That key doesn’t activate anything, it just tells Windows to change editions.
• Once the laptop is running Pro, then you can apply one of your volume license keys to activate it.

The generic upgrade key you’ll want to use is: VK7JG-NPHTM-C97JM-9MPGT-3V66T. Enter that under Settings → Update & Security → Activation → Change product key. After the edition changes to Pro, go back and enter one of your valid volume license keys to activate.

This two-step process usually clears up the error you’re seeing. If you’ve already tried applying volume keys directly, that explains why you kept hitting the same wall.

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Answer 2

0x80041023 indicates a product key/edition mismatch or an invalid key for the way it’s being used. On a Windows 10 Home device that was reloaded, a Windows 10 Pro volume license key (KMS or MAK) is not the correct way to upgrade and activate directly from the client UI.

For upgrading Windows 10 Home → Windows 10 Pro on that laptop, use one of these supported paths instead:

1. Upgrade the edition via Microsoft Store (retail Pro license)
   1. On the laptop, go to Start > Settings > Update & Security > Activation.
   2. Under the Windows section, select Go to the Store.
   3. In the Microsoft Store app, purchase Windows 10 Pro while signed in with the appropriate Microsoft account and complete the upgrade.
   4. After purchase, Windows will install the Pro edition and restart.
2. Use a valid Windows 10 Pro product key that matches the edition
   If there is a retail or OEM Windows 10 Pro key (not a volume license key) for that device, enter it instead:
   1. Go to Start > Settings > Update & Security > Activation.
   2. Select Change product key and enter the 25‑character Pro key that is licensed for this device.

If a volume license (KMS/MAK) must be used, the device should first be on a business‑appropriate base edition (e.g., Windows 10 Pro OEM or retail) that matches the volume key’s edition. A Windows 10 Home OEM device cannot be directly upgraded and activated to Pro using a Windows 10 Pro volume key alone; the Home→Pro upgrade must be done with a matching Pro license (Store or retail/OEM key), and then volume activation can be applied on top if needed.

If activation errors persist after using a correct Pro key that matches the installed edition, use the Windows Activation troubleshooter from Settings > Update & Security > Activation > Troubleshoot, and then follow the guidance under the specific error code in the activation error documentation.

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References:

• Upgrade Windows Home to Windows Pro
• Get help with Windows activation errors