Hardware Need help to restore factory setting on my desktop

[Noctosphere]

So, im trying to reset my pc to factory setting. I have win 10 on a usb stick.
When booting the bios, i press f12 to open boot setup.
I choose the usb stick and it brings me to the windows installation menu. I choose repair the computer. Then reinitialise the pc. I then get an error message about a required partition missing.
Anyone can help? Thanks

 

[Seriel]

If you can access Windows just do this

 

[Noctosphere]

If you can access Windows just do this
View attachment 84064

Idk why but my windows got deleted after my first try to reinitialise. And i cant install it back

 

[Noctosphere]

Im just unable to install windows back. Heres the message i get
Install now> i dont own a product key> i accept term of uses> upgrade: install windows and keep files, setting and applications> then i get this error message :
The computer has booted from a windows installation support. Remove the installation support and reboot the computer so windows startup normaly. Then replace the installation support and restart the upgrade.

Help?