recovery discs have unique information for each computer, you would make a recovery disc when you first set up your computer (it asks would you like to make a recovery disk y/n? )
have you tried f11 or f8? (hold either down on start up and it should take you to a menu)
As far as I understand a recovery disc is peculiar to your personal computer - you create one yourself as one of the first jobs on a new computer. You may be able to get one from the computer manufacturer (at a cost) but NOT for Windows 11 as it's not out yet - we're only up to Windows 8.
I am having trouble finding a reputable download for you. You should be able to use a standard install disk - you could ask around to see if anyone has a spare and give it a go?
Download Hitman pro onto another computer
Run it and click the little blank icon at the bottom. This will make you a bootable USB stick, which you can then boot from and run a scan.
Hitman pro uses cloud scanners to scan you machine and remove trojans. You can activate it free for 30 days without buying it.