How should I prepare my PC setup for the examination?

The screensaver (and any automatic lock after a period of inactivity) should be disabled. If this is not possible, the period should be set to as long as possible. You will have to take this into account, avoiding that the screensaver or screen lock become active, because they can create instability and force the lockdown browser to close.

Similarly, power-saving functions should be disabled, such as those which cause the computer to automatically power off, sleep or hibernate.

Make sure that neither the virus scanner nor an automatic update nor any other programme or app starts during the examination. If a programme or app starts during the exam, it can cause the lockdown browser to interrupt the examination.