I can't digitally sign the driver for windows 7 64

There is such a wonderful Firadisk driver, but it just so happens that it is not digitally signed, and on Windows 7 64bit it can only be used when digital signature verification is disabled. At the same time, it becomes impossible to run some network games on the computer (for example, GTA5), the anti-cheat swears at turning off digital signature verification. How can I sign a driver without buying an expensive certificate for a year?

Author: Nastya, 2020-04-03