Onboard Graka disabled and laptop display broken, what now?

I have just disabled my onboard graphics card (Intel HD Graphics 620) (in Device Manager) because I thought that my other GraKa (Nvidia MX960) still shows me image. In addition, my screen is broken and is connected to an external monitor with an HDMI cable. Need help! Can I somehow restore everything if I install another hard drive? Would not have a problem to unscrew the laptop.
btw. Have already taken out this bios battery and made clean again.

Here are some information about the hardware:

Processor: Intel Core i5-7200U (2.5 GHz, up to 3.1 GHz)

Ram: 8GB

Graphics Cards: Graphics CardIntel HD Graphics 620, Nvidia MX960.

Operating system: Windows 10 Home

Well, if the hard drive is broken, you can't just recover everything by replacing the hard drive. You would have to somehow transfer everything from one to the other. And the graka does not work, because it probably. A problem with the drivers there? Sry if that does not help

PS, every laptop manufacturer uses their own plug-in "module" for the hard drives, so it may be that hardly any will fit.

Maybe outdated drivers that cause problems?

You still see the start screen, right? So everything in front of Windows itself?

You could try to get into safe mode with F8 (spamming at startup, should also work with Win10 / but I'm not really fit with Win10 …)

Or try to reset the configuration. Should work too. Guess google times, how to enter the safe mode or the options in Win10. Quaso a rescue menu. Otherwise start with a setup stick. Then you would have to come into the options.

Have the whole driver 1 week before already checked, were new. As I said I've disabled in the Device Manager, the graphics card.

So start screen and so I see, nothing more.

Will I immediately try in the facesight mode 7zu komeb

Then start the PC (notebook) in safe mode and activate the Intel graphics again.

I do, thank you