When I start my laptop, Compaq Presario, it does not get past the startup screen, it does...?
...not  boot even after restart? My laptop hangs on the Compaq logo screen. I have tried to reboot, tried  taking the battery out, and have tried other electricity outlets. I  also checked Compaqs website and still have to try removing and  reinserting the memory chips. Any other ideas? 
Laptops & Notebooks - 5 Answers
Random Answers, Critics, Comments, Opinions :
1 :
This does sound like a loose or damaged RAM chip or hard drive.  I would take out both and clean the contacts before replacing
2 :
Sounds  like it isn't loading the OS, but give a little more info please. First off what OS are you using? Can you boot it in Safe mode or in last known good config? if not, you may either have a problem with a corrupted boot, OS, or   bios or a messed up MB or something (happened to my friend with his dell  laptop). We can narrow this down a little later. If you can't get it to even show the screen for these menus, then it's  going to be harder to fix. Try to hook up your hard drive onto another tower or laptop and see if  you can boot into it. If you can, then it very well may be a hardware  problem.
3 :
if you installed new software or hard ware recently that's your problem
4 :
That  sucks! I am sorry about that. If you don't have warranty on it and you  don't want to pay lots of money to take it to a local repair shop, you  might have to put in the CD that came with it and reinstall it. The  problem with that is that you might lose all your data.
5 :
It  maybe that your HDD has been disabled in yout BIOS settings, is there  any reason this could have happened or failing that your hard drive may  have died on you...  How long have you had it?  The other possibility is a corrupt installation of Windows but I would  put my money on a failed HDD.
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