Hi @Eric Kabel
Based on your description, you want to copy a copy of Windows 10 from your old PC to your new PC's SSD and upgrade it to Windows 11. According to Microsoft's license terms, if your computer hardware has undergone significant changes, such as replacing a motherboard or processor, then you will need to reactivate Windows. However, if you have just replaced your hard drive, then you can try to activate Windows 10 with a digital license for Windows 11. You can install Windows 10 on a new PC and then activate it with your digital license. Note that if your license key is an OEM license key, it cannot be used on a new computer. If you are not sure how to obtain a new license key, visit the official Microsoft website or contact Microsoft Customer Support (run the command "SLUI 4" as an administrator in Command Prompt) for assistance. You can then use the Windows 11 Upgrade Assistant to upgrade it to Windows 11. The upgrade process may take some time and there may be some issues during the upgrade process. Additionally, you'll need to make sure that the software and data on your old PC are compatible with Windows 11. Finally, we recommend that you back up all your important data just in case.
Hope it helps.
Lei