Some information as to what actually constitutes "my pc", might help.
Manufacturer's Name, Model Name, Model Number (complete and comprehensive model number).
As well as....
How long have you had Windows 10 installed?
When did it first happen? After an upgrade from a previous version of Windows or after an update to Windows 10.
Do you have a second computer that you can use to download the installation media
https://www.microsoft.com/en-us/software-download/techbench
Once you have the ISO, you can use ImgBurn to burn it to a DVD or Rufus to burn it to a USB ThumbDrive, either of which you can use to boot your computer.
When you've managed to boot from the installation media you need to click the Repair Your PC link on the second page after the Choose a Language and Keyboard layout page.
That should get you to the Advanced Troubleshooting options.
