Internet history

In newer versions of windows you can do this in local group policy. go to start--run and type mmc
Go to file -- add\remove snap in -- click the add button.
select "group Policy" click the "add" button. when it says Local Computer, click finish, click close on the other window.

At the Console Root click the + sign and navigate to -- user configuration -- administrative templates -- windows components -- internet explorer -- internet control panel -- select "disable the general page" double click this and select "enable". Apply the setting. Now the general page will not show up so the temporary internet files cannot be deleted in this way.

I think it was very considerate of the user to clean up all those messy files. He/She should get a raise. Seriously though, while answer #1 is true, a user could still delete all those files by going through Explorer and doing a couple of Registry hacks. You might consider installing a keystroke logging program on the machine.

Its' been said, install a keylogger (free:soft-central SC keylog) or use a copy-program to automatically back-up the history, cookies and other files you want to see (ie taskzip, free, copies files at set times in the backgroud).