Let me know which of those would be most helpful to you, and I’ll gladly provide a detailed, useful write-up along those lines.
After launching PassFab FixUWin, look for the registration option. Typically, you can find this by clicking on the small menu icon in the top-right corner of the program's interface and selecting "Register" from the dropdown menu. A registration window will appear, prompting you to enter your credentials. passfab fixuwin key fix