Actually it's permanent and doesn't go away unless you destroy your PC sadly.
Here's a good example of what to do.
A less destructive way is to restart ugh i mean burn your hard drive.
You can get rid of the bypass when you restart your pc, first you have to close your game and cheatengine or whatever you are using, well, that works almost with every eac bypass that i have used. close ce, close game, restart your pc.