Windows 10: Windows 10 has almost completely stopped working today!

OK, I'm in a mess!
Today, my Windows 10 install has gone crazy! It will (eventually) boot to desktop, but immediately gives error about 'c:\windows\system32\config\systemprofile\Desktop' is not available.......
Nothing is working, there are no normal icons on the task bar, it is not validated, I can't type anything in, etc.
It responds to taps on trackpad, but takes about 2 minutes before anything comes up.
Can anyone suggest what on earth has happened and how I should start to resolve this?
Thanks.

:)

 

Windows 10 catalyst Control Center Monitor

This has stopped working 5 times today. Also, everytime I download photos from my camera to my PC, they download fine. Reliability Monitor shows Photos.exe stopped working. Today I got some new errors. CLI.exe stopped working and MOM.exe stopped working.
This Windows 10 is a joke. I also have a Lenovo Laptop that I just upgraded to Windows 10. When it Windows 8.1 it stayed on 10 with never any errors. Since downloading Windows 10, now I get errors. Almost forgot! Windows Store update failed today. I guess
I'll just quit looking at the Reliabilty Monitor. Internet Explorer also stops responding. I'm using Microsoft Edge as my browser.

What should I do now????????

 

Audio Doesnt Work Afteri Installed windows 10

I just upgraded to Windows 10 today, and now my audio has completely stopped working, I have tried fiddling around in settings and troubleshooting, but nothing has worked. I previously had Windows 7.

Can anyone help?

 

It's the shit new Microsoft update, broke my PC too. Try going back to an earlier build, it fixed it for me:

How to Roll Back Builds and Uninstall Updates on Windows 10

 

Tried uninstalling updates, didn't work. Tried resetting PC, but got 'There was a problem resetting your PC' error!
What is happening is that it boots to desktop, and after about 5 minutes, anything using the trackpad is usable. However, the keyboard doesn't work in things like browser search bar, or the Start box, but it is recognised in places like the File Explorer search box, or in Settings search box.
Also, most of the icons in the bottom right of the task bar, like 'safely remove hardware' etc., are missing.
Don't know what to do. try making a bootable USB and attempt a repair?

 

I'm quite surprised no-one is able to offer any further help here. This forum is usually really quick with help.
I tried to reinstall Windows, but just got this! Any help at all?