You'd need to plan carefully and execute each step with precision.
You'd need to plan carefully and execute each step with precision.
You're facing a common challenge. Since your old PC runs Windows 10, you can usually downgrade to Windows 7 using the built-in Windows Update feature. If you need more control, consider using a bootable USB with Windows 7 ISO to install it directly. Regarding upgrading from Windows 10 to Windows 7, it's technically possible but may require some technical steps and could affect system stability. Check compatibility and back up important data before proceeding.
The Windows license linked to your present machine is connected to that device. You’d probably have to buy a Windows 10 license, or get the 8.1 version now and upgrade later (provided you intend to develop within the free upgrade window).
Are you planning to move Windows from your current machine to a new setup? You can transfer your license by contacting Microsoft Support and removing your key from the old device, which will then be valid on the new one (note this may vary with HP keys). If you need to use the Windows 7 installation disk for a fresh OS on the new PC, you can purchase a matching Windows 7 key from r/microsoftsoftwareswap for the exact version, and after installation you can upgrade to Windows 10 at no cost during its first year.
OEM keys can be reused after extraction. However, they aren't suitable for downloading ISO files from Windows; you'll need an ISO from another source and verify its integrity using the SHA1 hash. Alternatively, generic keys from Microsoft can be used, which will install Windows but won't activate it—activation requires the original OEM key.
They are able to be used again, but using an OEM on a different motherboard violates the original license terms. Sharing information about improper use can upset @GoodBytes.
He becomes irritated whenever a license is violated for any software.