Touchpad disappeared from my Samsung laptop

Hello,

I have a Samsung laptop model np900x5n with Windows 10. It was working fine. Suddenly, it has just stopped working following a windows update probably (but I am not sure that it is the cause but it seems likely). The touchpad does not appear in the settings anymore. Windows explicitly says there is a problem with the driver. I just ran the troubleshooter for hardware and it detects that i2c HID device has a driver issue. Driver files for I2C HID device are hid2c.sys and mshidkmdf.sys. The problem is described as follow:
Problem status
STATUS_DEVICE_POWER_FAILURE
C000009E
Problem code
0000000A

I tried many solutions already and I spent hours looking for one but so far nothing has worked:
1- Bios: enable/disable touchpad in the bios
2- I made sure that I am current with windows update which I am
3- The roll back to previous version in the driver is grayed out. Not available
4- I tried to manually uninstalled the last windows updates
5- I tried to restore the system to a previous version of windows
6- I checked the device manager / there is a problem with the I2C HID device which seems to be the touchpad. I tried uninstalling it and then reinstall it. It comes back with the yellow sign problem. I tried updating the driver when windows says that I have the latest update available. I tried installing a new driver through samsung but when I try to install it, i get the following message: ERROR_NO_SUCH_DEVINST
7- I tried in safe mode too / touchpad is unresponsive

I called Samsung for support. They remotely installed their SW update but it did not do anything. It tries to update a non existing touchpad. They want me to reinstall or to reset my PC but this would mean complicated hours of re-installation of all my software which I want to avoid by all means. I asked them to give me just the driver file and they always declined saying that all their update is going their Samsung update system

This is a fairly new computer but out of warranty. I don't know what to do. Please help.

Thank you

Dan

After many attempts, I am still unsuccessful at reviving the touchpad
So I followed your advice, I downloaded Macrium Reflect free and I am doing a disk image on an external storage device. Once it is done, I plan to do a complete restore of my system to the factory settings.
I have never done or used a disk image. Do you think that after the restore, I can just reinstall Macrium reflect and restore my image from the external storage device? Will my computer (data + installed software) look exactly the same or are there risk to lose some of my data?
Let me know / I am very nervous about this :)

I guess I am not very experienced in the field. Here what I want to do
Since I cannot get the touchpad to working, I have to do a full restore to factory settings (this is what samsung recommended)
I do not want to have to reinstall all my software and reconfigure them. It will be too time consuming. The data I can back up no problem. My concern is reinstalling the software. Is there a safe way to do that?

Plus I have a good drive back-up running. I am afraid to mess it up.

Let me know what you think and what you recommend. I wish I could make the touchpad working again. It is just a matter of drivers. Unfortunately all the drivers that I found online so far did not match the touchpad installed.

By the way, thank you so much for your help :)

Hi, I did update the BIOS through the Samsung update tool. There was actually an update available for the BIOS so I thought it would fix the issue but it did not.

So I guess my last option is to try the repair install windows 10 with an in place upgrade. We are sure that this will not affect my data, my programs and my settings, correct?

I will do disk imaging from now on. I guess now it is too late since there is something wrong. I will proceed with the repair as suggested and let you know how it goes