Upon startup icons are gone, can't access start menu or task manager

Issues:
- Upon startup, none of the icons appear. All that shows is my desktop background.
- All that shows up on the task bar is the Start button, the search bar, and the Cortana icon.
- When I try to access anything on the task bar, the mouse cursor changes to a blue spinning circle
- When I double click on the task bar, the screen flickers for a moment then returns to previous state

Things I have tried:
- Can't access the task manager, ctrl+alt+del does not work.
- Windows + X does nothing, Windows + R does nothing
- Can't type in the search bar
- Unplugged and restarted computer multiple times
- Was able to boot in safe mode, was able to pull up task manager but if I clicked on anything it would say not responding. Nothing showed using more than 2-3% CPU
- I got to the command prompt, I typed sfc /scannow and after some time it came back with an error message
- I tried both DISM /Online /Cleanup-Image /ScanHealth and DISM /Online /Cleanup-Image /CheckHealth and came back with an error
- I do not have any previous restore points
- There is only one user account

I'd really appreciate any help!
Thanks!
Jamie

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FYI, never had anyone help me here, but wanted to say that just in case someone else has the same issue, it was a bad Windows update. Windows 10 had not been successfully installed.