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Black Screen With pointer Boot to safe mode fine


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#1 Hades12

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Posted 11 March 2011 - 10:21 AM

Working on this one for a friend.

Vista home sp2

It will boot into safe mode and work fine. reboot to normal and we get the login screen once clicked it will start loading into windows but goes to a black screen with the pointer showing and would give an error on loading nvcpl.dll, I have used safe mode to turn off the Nvidia control panel on startup but now just get a black screen and pointer. I can Cnt Alt Del and get to the Lock, switch user, task manager, screen.

No signs of malware or virus.

Kind of stumped on this one.

Thanks

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#2 Allan

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Posted 11 March 2011 - 10:24 AM

First step would be to download and install the latest video driver from the nvidia website. If that doesn't work we'll try a clean boot using msconfig.

#3 Hades12

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Posted 11 March 2011 - 11:47 AM

downloading now. will report back.

#4 Hades12

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Posted 11 March 2011 - 02:20 PM

installed and rebooted into safe mode and then shutdown and boot normal. goes from the login screen to a black screen and the pointer. went back to safe mode and created a new account, boot and tried it, it went to a blue screen with the pointer but would not go any further.

#5 Allan

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Posted 11 March 2011 - 05:44 PM

Okay, let's try this and see what happens. In safe mode:

Open msconfig and choose selective startup (disable everything from loading) and reboot. Does the problem still occur? If not, start adding items back to msconfig one or two at a time, rebooting after each change, until the problem reappears and you'll have identified the offending process. However, if the problem continues even with the first selective startup it's possible we're looking at a hardware related issue.

#6 Hades12

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Posted 12 March 2011 - 03:04 PM

will be monday before I can work on it again.

#7 Hades12

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Posted 14 March 2011 - 09:08 AM

so went to safemode. ran msconfig as admin, picked selective startup and unchecked startup items and services rebooted but still get to the black screen with pointer and no further.

#8 Hades12

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Posted 15 March 2011 - 10:26 AM

found some good reading

http://forums.techarena.in/windows-vista-performance/832207.htm

http://exploringourmatrix.blogspot.com/2007/12/vista-black-screen-after-login.html

http://www.burchwords.com/archives/2309


Turning off UAC got me back in the computer.

#9 Allan

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Posted 15 March 2011 - 10:29 AM

Glad you got it sorted out. To be honest, it would have taken me quite a while to think of UAC as a potential cause of your problem - if ever.

#10 Hades12

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Posted 15 March 2011 - 10:40 AM

I checked out a few other things first before trying it. going to check the system deeper also to make sure nothing is on there.

Thanks for the help.

#11 Allan

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Posted 15 March 2011 - 10:44 AM

Well, such as it was, you're welcome :)




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