Holding the F11 key at startup will bring you to the factory restore prompts for Lenovo PCs. The factory reset is driven from the ROM BIOS and not the command prompt.
When it is starting up at the Splash Screen(windows logo screen) hold the power button in to shut it off this should bring up the menu to open in safe mode. Might take a couple trys.
What model is your laptop?. i can direct you to the river if i know which model. The model is located underneath on a sticker. If not it may be printed on the surround of the screen.
You can switch to an
external monitor or data projector by two methods.
1. Connect the external
monitor to the laptop's video port, power up the external monitor first and the
laptop. The video information will automatically switch to the external
monitor.
2. If you power up the
laptop first then you can switch the video output to the external monitor by
pressing the Fn key and one of the Function keys, depending upon your make and
model laptop. You can also toggle between the external monitor or both LCD
screen plus the external monitor or back to LCD screen only by pressing the Fn
key plus one of the function key a few times.
Here is a list of key
combinations for some of the laptops :-
IBM ThinkPad = Fn + F7
HP and Compaq = Fn + F4
Toshiba = Fn + F5
ASUS and Dell = Fn + F8