I wanna suggest a plan C:
- Plugin the screen into the PC
- boot the PC up
- Wait a few minutes until you're reasonably sure Windows is fully booted. A good indication is that the Hard Disk Drive indicator has stopped flickering.
- Use the Winkey+P to pick an output screen
Winkey+P is a toggle key, switches between four modes
1. Just the PC screen
2. Duplicate screens, your TV and PC screen will show the same thing
3. Spilt screens, TV and PC screen will each show half is normally there.
4. Just the TV screen
Windows 10, and HDMI ....... is a good match. You might be lucky, provided your TV has the necessary drivers in order to work with your PC.
I wanna suggest a plan D: borrow someones laptop and use that screen to set it up.