Sys.key is an interesting way to lock your computer;
1.Go to START>RUN… Type in “syskey”;
2. When the next window appears click UPDATE
3. Make sure that in the next window you select the next options
4. Before you click OK, insert the Floppy diskette;
5. Now just exit the program and restart your computer.
What we actually did with this simple tweak is a physical key you put inside a computer whenever you want to use it, the key being the diskette. It’s kinda fancy…