what are rest of specs of the PC? is this a laptop? Toshiba motherboard
Windows 10 doesn't turn off when shut down, its in a hybrid hibernate state, meaning its semi awake. Now a power outage can mess with that state, and cause corruption. And stop it loading right.
On another PC, download the
Windows 10 media creation tool and use it to make a win 10 installer on USB
if you can boot off the usb, I can show you how to save data off install
- on screen after languages, choose repair this pc, not install.
- choose troubleshoot
- choose advanced
- choose command prompt
- type notepad and press enter
- in notepad, select file>open
- Use file explorer to copy any files you need to save to USB or another hdd
provided power outage didn't break anything, I would do a clean install
follow this guide:
https://forums.tomshardware.com/faq/how-to-do-a-clean-installation-of-windows-10.3170366/