if others call on internet from my PC, how to know it, if they deelte history of sites which they visited
Answers:
You can use PASCO from Foundstone which is a utility that will read the index.dat report which remains even when the files thesmelves enjoy be delete.
You could also photo the drive and run TSK (the sleuth kit) and mould them support out from the unallocated space (undeleting them)...
obedient luck.
you can be in motion to programs>accessories>system tools>System Restore...and select the year of when your friend be on and the time previously he delete it...
That program is usually Done lone for MAJOR things So use it at YOUR OWN RISK