Sony laptop wont boot to windows 7

Sony Vaio vgn-nw240f/s notebook
November 5, 2011 at 07:45:27
Specs: Windows 7
Sony Vaio VGN-NW240F with Windows 7. Wont boot to OS. I get the Vaio logo then black screen with flashing _ at the top left corner. Can get into Bios and it sees a hard drive. Go into F10 to run diagnostics and tells me no errors. Did a complete system install, everything loaded fine or so it seemed, after restarting, same black screen. Help!

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November 5, 2011 at 09:00:29
I assume you did a complete reload using a F key?

Seeing bios proves the screen should work in some mode. Good test there.

Seeing a hard drive is a start. Not sure if it is good.

Not sure there is any test suite to be used here. There used to be disks that could test video modes.

The most easy might be to borrow (if you don't have one) a windows 7 dvd just to see if it boots up to a mini operating system. The windows disks now have a small windows system that loads up from the dvd. That is basically a working OS designed to fully start a computer. That ought to either show video or not.

If it does then you might need to try using that disk to attempt repair with repair tools.

Otherwise test memory with memory diagnostics (on dvd) or get a hard drive test. Either at hard drive web site or ultimate boot cd for generic tests.

Not sure of where the problem is just yet. Data, hard drive, memory, video adapter.

I guess it is possible that you have left an external monitor connected. Seems like you'd know that.

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