It is very important to understand that anything you save to an APNK computer's hard drive (eg My Documents) will be completely WIPED when the computer restarts.
The APNK computers can be shut down or restarted by anyone using them at any time AND they automatically restart after about 15 minutes of "idle time" (no keyboard or mouse activity, so watch out if you are watching a DVD!)
We strongly recommend that you to restart the computer when you have finished your session. A restart is not the same as logging off - only restarting the computer will ensure all user data is wiped.
You can temporarily store your files on the hard drive of the computer. The default file location is "My Documents" which is D:\UserData on the computer. Do not try and save your files to other locations of the computer's hard drive - it may cause problems later on for you. For example don't save your work to the Desktop.
See also
Is the internet filtered?Information on the internet filtering in place on our PCs and wifi.