Helping people with computers... one answer at a time.
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Windows tries to set the display to its configured settings right after displaying the Windows logo, and just before displaying the login screen or desktop.
Nine times out of ten if that's when your display stops, it's simply because your display settings are set to something that your monitor can't handle. Depending on what it's not supporting, some monitors respond by going black ... others just go "crazy" displaying unintelligible gibberish.
If that's the problem, it's fairly easy to fix.
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First things first ... let's get you a bootable system.
Boot in safe mode - press F8 when the Windows loader presents you with the 30 second list of choices, and then select "Safe Mode" as your boot option.
Right click on the desktop and click Properties, and then on the Settings tab.
Now click and drag the Screen Resolution slider to the far left ... you want the smallest settings that your screen will support. Typically that'll be 640x480, or 800x600.
Also change the Color Quality dropdown to 256 colors, or whatever is lowest. (You probably don't need to go as low as 16 colors, if that's presented as an option.)
Now, click on the Advanced button, and then the Monitor tab of the resulting dialog box. Change the Screen refresh rate to 60 Hertz.
OK your way back out, and reboot your machine. If these setting were the source of the problem, it should now be able to boot normally. You may not like the screen settings, but at least you now have a place to start.
If the display is still blank or gibberish, the my recommendation is to once again boot into Safe Mode, possibly Safe Mode with networking, and update your video display drivers. It's likely that they are incorrect or otherwise broken.
A place to start ... start what? Start experimenting with the settings to see what does, and does not, work with your monitor.
I tend to start with the screen resolution. Once again right click on the desktop and click Properties, then Settings, and then drag the Screen Resolution slider a notch or two to the right to increase your display resolution. Now click Apply. It should change the resolution and display a small message box asking if you want to accept this setting. If you don't respond within some time, it assumes you can't see it, so it resets to the previous setting. The lesson here? If the screen goes blank or you can't read it, wait at least one minute before doing anything. The problem may resolve itself, and you'll be able to say "well, that resolution doesn't work", and move on to try another.
If, after a full minute or more the screen remains blank or unreadable, you'll have to reboot into safe mode, as we did originally, to restore your setting. (Why might this happen? Windows "remembers" and doesn't bother to ask you if you reset to something that you previously said worked. If you mistakenly said "this works" when it didn't ... perhaps by random keyboarding while the display was blank ... well, that could be how we got here in the first place.)
You can repeat this process of trial and error for each of the screen resolution, the color depth and the screen refresh rate. (For CRT displays, you really do want the refresh rate to be as high as your monitor supports.)
Article C2530 - January 23, 2006
Leo A. Notenboom has been playing with computers since he
was required to take a programming class in 1976. An 18 year career as a programmer at Microsoft soon followed.
After "retiring" in 2001, Leo started Ask Leo! in 2003 as a place for answers
to common computer and technical questions. More about Leo.
i can't run it in safe mode at all, only vga mode, and i got it refurbished, like a week ago, and nothing i've tried seems to work :(
Posted by: zack at August 5, 2011 10:29 PMI recently used my laptop to run a projector and switched to screen number 2 in the display setting to see the images. Unfortunately, I did not set it back after using the projector. Another bad - I don't have the projector anymore. When I boot up my laptop, it's a black screen. In Safe Mode, it only shows the one monitor so I can't switch. Help!?
Posted by: Charissa at September 15, 2011 6:02 PMi have done formating of my hp laptop by window 7 after formating i install some software it ask me to restract as i have done restract my laptop does not start and become a black screen .so please help me as first you can
Posted by: MOHIT at November 15, 2011 6:46 PMi just found out the answer after 5 hours of headache to figure what is going with my computer. I'm not the computer expert but you can try this.
Press F8 at boot start, on Screen got SafeMode, SafeMode with network, etc.
Click on Last Known Good Configuration (advance).
Posted by: toan at November 19, 2011 6:59 PMBe happy like me.
i have my own HP laptop at home with black screen, then when turn it on you have to use a torch to notify you desktop, if not , you can see anything, can you just help me with that issue because my Laptop is just three weeks old. can you just give me some information so i can fix it quickly...
Posted by: Kevin at April 3, 2012 9:38 PM