I uninstalled the graphics card and now it is gone. How to undo it?

Plankton said:

Your problem is; this is a laptop with switchable graphics. That said, the first step is to go to the laptops driver/support page and re download the Nvidia mobile driver for your make/model.
Support | Dell US

I did it. But when I install the driver I get the message "the driver software could not find compatible graphics hardware" so I can't finish installation.

Plankton said:

FYI: The Intel HD graphics is the default GPU.....if/when the graphics become intense enough it's "supposed" to switch over to the Nvidia GPU. With some laptops there is an option to manually change the default GPU....but not all. I'm not sure if your Dell does.

The optimus function is responsible for this. But after turning it off, when the laptop should work only on Nvidia, it gives nothing. Just low resolution and there are no graphics cards in Devices Manager

f14tomcat said:

@SebaFranek

Do you have a System Image backup from prior to this? That would certainly work. Also, if you were to do an in-place repair of your system with the ISO from MS, it very well may pick up the hardware and install a driver suitable to get you back up.

Repair Install Windows 10 with an In-place Upgrade Windows 10 Tutorials

It's a fresh system, I did not make image backup. But i will try repair my system with the ISO.

Have you tried the drivers from Dell for your model?

http://www.dell.com/support/home/us/...-m6700/drivers

I've never dealt with a laptop with switchable graphics, I admit. I'm not sure which order you should install the drivers in, or whether it matters. I'd try the Intel drivers first.

SebaFranek said:

Nvidia doesn't appear.

Please note it may be listed under "Other devices" or a category labeled with a question mark which don't even show up until you select "Show hidden devices".

Ben

Try3 said:

Seba,

Are you logging into Dell Drivers & downloads using your Dell Service Tag?
- Doing so should ensure that you are then downloading the correct driver for the correct hardware.
- I'm sorry to speculate like that but the only other explanation I can think of is that your hardware became defective at the very moment you chose to uninstall its previous driver. Whilst that is not impossible, it does seem to be a huge coincidence.

Further unwarranted speculation
- There might be a BIOS update waiting for you in Dell Drivers & downloads [for which using your Dell Service Tag would be essential if you are to avoid trying to install the wrong BIOS]. That update might affect all your hardware including graphics drivers.
- You might try to download & reinstall the latest Intel HD 4000 graphics driver first. Perhaps your NVidia uninstallation somehow triggered it into a fault condition that is somehow trying to masquerade as the only graphics component. I feel stupid even suggesting this.

Best of luck,
Denis

@bobkn

Yes, I'm using my service tag. Like i wrote above, i tried drivers from Nvidia page and Dell page. Both do not see the card.
I have latest BIOS.
I've tried to reinstall the Intel HD software, it didn't do anything.
For me it also looks like it disappeared forever. I also reinstalled the chipset drivers and it did not help. Too much disassemble the laptop to disconnect and connect the graphics card. I will try the option with refreshing or resetting the system with ISO.

Ben Myers said:

Please note it may be listed under "Other devices" or a category labeled with a question mark which don't even show up until you select "Show hidden devices".
Ben

No question marks, nothing in hidden devices, there is no "other devices".

f14tomcat said:

@SebaFranek

Try this NVidia site for drivers downloads. Read the "How this works" message, and let it try to auto detect what driver is best for your machine.

Drivers | GeForce

I installed Nvidia Experience and It can't find anything