Windows 10: My computer just keeps loading it on day 4 now how do I fix it if trouble shooting and safe...

I tried rebooting I’ve tried everything so far the same loading cycle keeps repeating its self.* Moved from Community Center

:)

 

Why I don't get the trouble shooting option?

Steps:

1. move the mouse cursor on the power icon
   
2. push down the Shift key
   
3. right click on the power icon (a menu will pop up)
   
4. select the restart
   

On the restart screen, I only have the "turn off your computer" option, but nothing else. What I need is the "trouble shooting" option and I have seen the option in many online tutorials. Why I don't get the option?

BTW, there are two other ways to get the restart screen, using a repair disk and searching on UEFL. And this question is related to my other question.

 

Trouble shooting error while trouble shooting for hardware and device

The web cam is missing in my laptop Toshiba Satellite C55 5352

I have done the trouble shooting for hardware and device

The result is :

An error occurred while trouble shooting

An unexpected error has occurred. The troubleshooting wizard can't continue.

in view detail the message is as under

Package ID : Device diagnostic

Path : C:\WINDOWS\Diagnostics\Index\DeviceDiagnostic.xml

Error code :0x80300113

Source :Engine

User :KRISHNAN\krishnan

Context :Elevated

how to fix the trouble shooting error and install the missing webcam

 

Error Loading operating system

Can I ask you Guys where can I find more tutorial on PC fixing or trouble shooting?
like the one you posted Keakar "step by step troubleshooting guide"
I'm learning and like to become a PC tech.