You may do this by going to cx.usiu.ac.ke. You'll need your student ID as your user name and your PIN, and the course and sections you want. This is possible only during the scheduled registration time.
This is a unique number sent to your email address The first time you register or use the CX system, this code, along with your student ID number will allow full access to your record, so keep it a secret! If you forget your PIN go to the Office of the University Registrar.