The Delete key is the most common. Press Delete during boot = AMI, Award BIOS Press Esc during boot = Toshiba Press F1 during boot = Toshiba; Phoenix; Late model PS/1 Value Point and 330s Press F10 when cursor jumps to top right-hand corner of screen = Compaq Press F10 when logo screen is displayed = Compaq Press F2 during boot = NEC Press Insert during boot = IBM PS/2 with reference partition Press Tab during boot = Emachine Press Reset button twice = some Dells Ctrl Alt + = Misc computers Ctrl Alt ? = Some PS/2s, such as 75 and 90 Ctrl Alt Enter = Dell Ctrl Alt Esc = AST Advantage, Award, Tandon Ctrl Alt Ins = Zenith, Phoenix Ctrl Alt S = Phoenix Ctrl Alt Shift + Num Pad Del = Olivetti PC Pro Ctrl Esc = Misc computers Ctrl Ins = some PS/2s when pointer at top right of screen For some Phoenix BIOS: To tell if your computer has a Phoenix BIOS, watch the screen carefully when you boot. One of the first lines to appear contains the word "Phoenix." 1.If you are in Windows, exit to DOS. 2 .Press Ctrl+Alt+Esc. The setup screen appears. If you have made certain changes to your system, or are having certain problems with your system, this may not work. If Pressing Ctrl+Alt+Esc doesn't open the setup program, follow these steps: 1.(Leave the computer switched on.) Use the key to lock the keyboard. 2.Press the Reset button on the front of the computer. A message appears asking you to unlock the keyboard 3.Unlock the keyboard and press F2 to run the CMOS setup. 4.Press Del. This brings up the CMOS setup program. If you have an EISA computer: 1.Press the Reset button on the front of the computer, then press Ctrl+Alt+Esc immediately when the memory count begins. If this conbination doesn't work, use Crtl+Alt+S. AST Many AST 486's require CTRL-ALT-ESC Compaq Generally Compaq Setup can be entered by hitting the 'F10' key when booting up. As soon as you see the cursor go to the upper right hand side of the screen, hit 'F10'. Compaq setup program resides on a small partition on the hard drive and if you have fdisked and reformatted or installed a new hard drive you will need to use the Compaq setup program from here: Compaq Setup Download http://www5.compaq.com/support/files/wsdsfr.html Dell Older Dells (486 models) require you to enter the sequence: CTRL-ALT-ENTER Hewlett Packard Pentium Systems: Hold down the F1 key upon startup/bootup IBM ThinkPad ThinkPad using IBM BIOS (Early Models): Press CTRL-ALT-INS when cursor is in upper-right corner of screen ThinkPad using IBM BIOS (Later Models): Press and hold F1 key while powering-up laptop ThinkPad using Phoenix BIOS: Press CTRL-ALT-F11 from DOS prompt Packard Bell Early models (386,486) require the sequence Ctrl-ALT-S at any time NEC Versa Notebooks Hold down the F1 key upon startup/bootup EC Versa Notebooks Hold down the F1 key upon startup/bootup Other Common BIOS Key Sequences CTRL-ALT-S CTRL-ALT-Enter CTRL-ALT-Insert CTRL-ALT-Esc F1 F10 Ctrl S = Phoenix Ctrl Shift Esc = Tandon 386