How do i fix a black screen when i can't log on to my dell n 4030 notebook

you will have to contact dell to fix the problem

If it's 3 weeks old return it. Or you can do a System Restore/Recovery. Take a look at this forum for the Restore/Recovery Procedure: http://en.community.dell.com/owners-club/alienware/f/3746/t/19441985.aspx

Usually you'll get some errors in the system event log saying the hard drive is going bad. If it won't boot then you can put it in another computer or hard drive enclosure to test.

have you made any changes before the blue screen appear? installing a driver maybe? if you have,try to undone those changes by booting with Startup with last known good configuration (undo recent registry and driver change),use System Restore,or Roll Back device driver,Scan your computer for viruses
and Return BIOS settings to their default levels,go to BIOS by pressing F2 or del exactly after you press the power button and the screen show up
if it still in blue screen,that's probably that some of your system file is missing,and you need to reinstall your operating system
Please let me know if it's working or not,i don't like to abandon anyone,and thanks for using fixya

Yes normally if you don't shut down your system properly you get this message, Solution : Log on to save mode and backdate your computer to the day before you got this message. If it doesn't work, you are gonna need to reinstall your O.S.

In the BIOS setup under Video choose the built-in adapter and no Dock video. Save and Exit BIOS setup. The system reboots. If it does again doesn't give you the blue login screen, press and hold the power button to shut it down. Restart it again and immediately after the Dell screen press and hold Function & hit the function key with the display on it. I think it believes you want your primary video to go to an external monitor. This should correct it if that is the cause of your boot-up blankness.

i have the same problem

It could be a hardware or a software issue

First run a hardware test on the computer, follow the steps

http://findtechhelp12.blogspot.com/2010/12/how-to-run-dell-diagnostics.html

Then if there is any part defective replace it.. Else reinstall the OS to fix the issue

http://findtechhelp12.blogspot.com/2010/11/how-to-reinstall-os-in-dell-computer.html

Try booting into safe mode. That will disable all drivers and use generic windows drivers to send commands to the devices. If that still doesnt work, id say that there is a problem with your OS installation. Backup your files using an external harddrive enclosure and reinstall the OS.

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