How to boot y inspiron 1545 if it won't boot past

http://biospassword.eu/dell-free-passwords

It sounds like a defective webcam.

removed your battery and charger then hold the power button for at least 10 seconds then replaced battery and charger.. good luck

Are you able to get to the desktop in safe mode?
Repeatedly press F8 on startup and choose to boot to safe mode in the options window.

mother board is cra#.

When the CPU in the computer or laptopoverheats then it will shut down (i.e. thermal overload) and won't boot upagain until it has cooled down. If this is the problem is not fixed then theCPU will eventually fail.
A faulty fan causes this problem or the fan and heat sink assembly are cloggedwith dust.
Check the CPU fan to see if it spins freely, if not replace the fan. If the fan and heat sink is clogged withdust the remove the dust and make sure the vents are clear and dust free. Use acan of compressed air to do this.

Hold down the power button for 10 seconds. That will hard-shut the PC. Once that is done, fire it back up, and try again. Somethimes, windows will act goofy shutting down. Especially Vista when it is left on too long without shutting it down.

Usually you would use the OS installation disk to get into restore mode (be careful, you don't want to accidentally delete everything by reinstalling the OS).

It should still be under warranty!!! So if I were you, and if you need a little hand holding, call Dell Customer support at 1-877-293-1197. Have your model number, serial code (usually somewhere on the bottom of the laptop), and setup disks for that computer handy before you call them.

They may walk you through a few procedures to try first before resorting to restore mode, but just be patient with them.

Hope this help you. Let me know how it turns out.

press the Fn Key and the power button see if the diags will run. You may have a hard drive problem or an issue with the operating system

You can get a Password Reset disc download and burn to CD. Copy/paste the address below, into your address bar of your browser.
http://pogostick.net/~pnh/ntpasswd/cd080802.zip
Download this file and burn it to CD. Put into drive and turn on PC, and boot from the CD. Follow instructions, choose the correct USER. & BLANK the password. make sure you say OK to write the data, and reboot. The logon password will now be reset blank.