I have an old PC and I want to install Debian on it. The problem is that I don't have a working CD/DVD drive. This PC can't boot the newest Debian from USB but I know I could boot older Ubuntu versions from USB, the last one I could boot I think was 16.04. Therefore it's possible to make this PC boot from PC.

Any ideas how I can make the PC boot this Debian from USB? Should I just try older Debian version, but I'm wondering is it possible to update to the newest one then?