You are right, it was a good team work indeed... I also need to thank you the expert who was assisting on my computer issue.
Anyway, i haven't realised about that USB icon on my C: until you mentioned it. I believe everything went well when extending drive C:, it would be nice to restore/change it to the standard icon if possible.
Yeah you are right i will probably not need Easeus Partition Master, so i have already removed it...
I will be very careful, and also make sure who access the computer is also careful enough to not download any dodgy software or any program from suspicious websites.
(Once we are done with this, i will also start a new topic for our other computer as i have a few minor issues to fix on it, we would love to be assisted on it)