No, you cannot downgrade directly from Windows 10 to Windows 8.1.
No, you cannot downgrade directly from Windows 10 to Windows 8.1.
Dual boot refers to installing two operating systems on your computer, allowing you to choose which one runs when you log in. It means you can have more than one OS on your desktop. Safety depends on how you set it up—properly configured dual boot is generally safe, but there are risks if not managed correctly.
I checked the situation and Windows 8.1 keys are only available on discs. Since your tower doesn’t support a disc drive, let’s clarify the options. Option 2 likely refers to alternative activation methods. A VM means running a virtual machine, and GPU passthrough lets your graphics card work directly through the system, improving performance.