Yes, you can install Windows 10 on your device.
Yes, you can install Windows 10 on your device.
You're trying to upgrade from Windows 7 to Windows 10 on an Intel i3-2120 with 8GB RAM and no GPU. It's possible, but you'll need to check compatibility and ensure your hardware meets the requirements for the new operating system.
Yes, it's possible but you must have your Windows 7 serial or a fresh 10 license. Once installed, the activation key won't work unless it's the original Windows 10 version.
You can obtain the Windows 10 upgrade tool and complete the installation without purchasing a new license or keeping your current key.
Your system meets the requirements for installing Windows 10 64-bit. You should be all set.