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Black screen upon start up on windows 7


maymay

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Hello, I have a frustrating problem ever since I did windows critical update and changed anti virus and the problem occurred yesterday. Every time I reboot my PC, a black screen appears with a cursor shows up for a few minutes before going onto login screen/welcome screen. I did system restore back to a month and it still doesn't work. I uninstalled anti virus to see if that might be the case and the black screen is still there. I then reformatted my pc by reinstalling windows 7 again using the disc and the problem is still there. My pc is only one year old as well and it's quite fast and quiet. Normally when I startup my PC it goes straight onto the welcome screen/desktop without this black screen. What can I do in this case? Much help will be appreciated.

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Chronos the 2nd

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Have you tried removing and reseating your graphics card (GPU. Or tried, if you can another GPU. Check cables are all fitted snugly.

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maymay

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I haven't tried that yet since I am not experienced at doing this and I don't want to make the PC worse. It seems like all the cables are fitted in neatly and not jumbled up.

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jaywoo

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Is there any text on the screen, or is it blank with a flashing cursor?

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maymay

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There isn't any text on the screen, only a cursor but I can move it. The black screen remains there for a good 3 minutes before it enters the login screen which I am able to go onto my desktop.

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jaywoo

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When you say cursor, you mean mouse pointer? Unplug any devices not absolutely necessary, take any discs out of your optical drive if there's one in there - any difference? What antivirus did you remove, which one are you using now? Did you reinstall Win 7 from a recovery disk, along with bundled software that came with your PC or was it from a plain ol' OEM/Retail Windows 7 DVD?

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maymay

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Sorry yes I meant mouse pointer. Still no difference when I took out discs. I removed Norton and I am using bitdefender now. I wasn't sure if it was the anti virus that caused or the recent Windows update. I reinstalled Windows using the retail DVD, my pc didn't have a recovery disk that came with it. I reinstalled the drivers CD as well.

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nickf

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I have had one or two issues with bitdefender slowing my start up , but only for about 30-40 seconds , but I am using a SSD . my screen staed blue tho . All I did was run the repair feature on bitdefender , this seemed to cure it .

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maymay

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Hmmm. I uninstalled bitdefender now and the problem still gets the black screen. It's really hard to fix this now since this started yesterday and so my startup is really slow.

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jaywoo

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Do you get the same long delay if you choose Safe Mode? Try Safe Mode first and Safe Mode with Networking next time.

http://windows.microsoft.com/en-us/windows7/start-your-computer-in-safe-mode

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nickf

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Also , did you use the uninstaller that came with bitdefenfer , as windows does not do it fully .

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