because of i'm working in day time. my computer at home have been use by another person (siblings) how can i track all activities that happen to computer, i mean:
1- what kind of website they all surf?i need log file about this that can not be erase
2- for how long?
3- are they download something?can i prevent it?
4- are they installed something?can i prevent it?
5- what kind of program they use? i mean like microsoft office
and any other activities, i would like to monitored my computer...
currently i'm always received error messages, pop-up, virus alert etc
do i need to download some software..