I'm running a cyber cafe and getting a headache when people use the PC and install anything on that.
I am looking for some software so, when we reboot the computer, all data and Windows will return back to my previous settings. That way I don't care if people want to install or create anything on the PC because after reboot, the computer will reset back to my default setting.
Sounds like you're after Deep Freeze. This is the main product used for this in the corporate world. It's not free (45.00 CAD for the standard version), but it is well worth every penny.
Faronics Deep Freeze helps eliminate workstation damage and downtime by making computer configurations indestructible. Once Deep Freeze is installed on a workstation, any changes made to the computer—regardless of whether they are accidental or malicious—are never permanent. Deep Freeze provides immediate immunity from many of the problems that plague computers today—inevitable configuration drift, accidental system misconfiguration, malicious software activity, and incidental system degradation.
Deep Freeze ensures computers are absolutely bulletproof, even when users have full access to system software and settings. Users get to enjoy a pristine and unrestricted computing experience, while IT personnel are freed from tedious helpdesk requests, constant system maintenance, and continuous configuration drift.
Similar products include Smart Restart and Shadow User, both commercial as well.
Microsoft has its own tool, since at least windows XP- its called windows steadystate -Its free too
Maybe Returnil? http://www.returnilvirtualsystem.com/
from the home page of the product:
Returnil's products combine virus protection with powerful system restore feature which lets you sleep at night knowing your computer is protected! Simple Fix Restart your PC and "pooof", all the bad neighbourhood stuff making havoc on your computer including any malicious files are gone. Your PC stays nice and clean
