To access Adobe CC software with shared device license in computer labs, zone24, A701 and student area in LRC, please using your Adobe ID. If no Adobe ID, please create it at https://account.adobe.com/
Here are the steps to create Adobe ID.
IMPORTANT: Please remember to check your email box to activate/verify your Adobe ID.
If there is any problem on Adobe ID, please try to explore Adobe FAQ https://helpx.adobe.com/hk_en/creative-cloud/faq.html