Hi,
I am not a moderator, but I would have thought the answer to this is to be careful letting other people use your PC.
You have to log on and if there is any chance that others will log on using your username, it would be prudent to make sure that you are not logged on automatically.
If you allow anyone to use your PC, be careful that they will not be able to get up to mischief.
Of course, these days with Windows, we can log on to a user account with a password. When we have finished our time on the PC, we should log off.
This way, other people cannot get access to your personal files and have access to your id on forums and such-like.
