Temporarily use a Windows 10 License from an unused machine?

I recently asked about upgrading a machine and using the old hardrive while I clean installed Windows 10 and my software on a second HD. Original question here:
Dual Boot Win10/Win10 while upgrading? Thoughts? )
I learned this was not possible as MS read it as two computers trying to use the same license. Instead, I just cloned the old drive to the new faster m.2 SSD. However, I still want to wipe and reinstall and will have time soon. I have a Win10/Linux Mint dual-boot Lenovo Laptop I almost never use in Windows. Is this a workable process that will not run afoul of Windows licensing?
1. Extract and Deactivate the license from the Lenovo laptop.
2. Reactivate the (OLD) HD using the License from the Lenovo so I can keep working from it.
3. Wipe the current (NEW) Desktop HD, clean install WIN 10 and Reactivate using the original License.
4. Install my software to the (NEW) Desktop HD. (Dual-booting Win10/Win10 - Old/New drive)
5. When complete, Deactivate the Lenovo license on the OLD HD, then use it to Reactivate Windows on the Lenovo.
6. Wipe old drive to become data drive

Here's the root of the problem - users cannot deactivate digital licenses for Windows 10 or 11 because the digital licenses are stored on Microsoft activation servers. All this talk about deactivating licenses in order to move them to new computers is a completely moot point with Windows 10 and 11.

To build further on my previous post, here are 2 different scenarios:

I activate Windows 10 Home for the first time on Computer A with a retail product key. I want to activate Windows 10 Home on Computer B for the first time with the same product key. I can change the product key on Computer A to the generic for Windows 10 Home: YTMG3-N6DKC-DKB77-7M9GH-8HVX7. Since my retail product key is no longer in use on Computer A, I can now use the product key to activate Windows 10 Home for the first time on Computer B. OR If I was logged into Computer A with my Microsoft Account, I can "transfer" (it actually copies) the digital license from Computer A to Computer B using the activation troubleshooter and my Microsoft account. In either case, both Computer A and Computer B Windows 10 Home will be activated with a digital license.

Scenario 2: I activate Windows 10 Home on Computer A with an OEM product key - either factory installed or with a purchased OEM product key. Again, I change the product key on Computer A to the Windows 10 Home generic product key given above. The OEM digital license now moves to retail. Again, by using a Microsoft Account, I can "transfer" the digital license from Computer A to Computer B using the activation troubleshooter and Windows 10 Home will be activated on both Computer A and B with a digital license.

As far as complying with the EULA - Microsoft has made it purely on your honor. Consider this - after you activate Computer B, you remove Windows completely from Computer A and sell it or give it away with no OS. The new owner installs Windows 10 Home on it and it will activate using the generic product by retrieving the digital license stored on Microsoft activation servers which you have no power to remove.

Thanks for the response. It's not exactly clear to me, but I'll work on understanding it. Basically, I just want to uses my licenses to to keep my old Windows working till the new install is complete.

I think Scenario 1B is what I want, but will need to research the procedure.

CalypsoArt said:

Thanks for the response. It's not exactly clear to me, but I'll work on understanding it. Basically, I just want to uses my licenses to to keep my old Windows working till the new install is complete.

I think Scenario 1B is what I want, but will need to research the procedure.

https://support.microsoft.com/en-us/...EBD=Windows_10