Dell Vostro 270 Owner's Manual page 38

7. Power-off the computer and disconnect the power cable from the electrical outlet.
8. Remove the cover.
9. Replace the PSWD jumper on the system board.
10. Install the cover.
11. Follow the procedures in
12. Power-on the computer.
13. Go to the system setup, and assign a new system or setup password. See
38
After Working on Your Computer .
Setting up a System Password .