File privacy on XP

I/we have an XP and 'we' are 4 different 'users'. What I want to do is allow privacy to each 'user', who shares the comp. As it is at the moment all users can go in and access each others files.

I have followed the 'help and support' advice but it falls a bit short as firstly, when I click on properties there is no 'security' tab to alter access to a file. There are a few other things which I have tried but nothing which looked like it had been written in English.

Any quick solutions from any one? (He said naivly :major ).

 

The easiest thing I can recommend is to move files to each user's 'My Documents' folder. Other users shouldn't have access to that. (Although admin accounts will)

However, if you prefer to set file permissions, you will first have to disable simple file sharing