Why Does Screen Go Black And Have To Turn It Back On Again

Aug 7, 2012

when I leave my computer screen and dont do anything it goes black the I have to restart even though the lights are still on ,I used to be able to touch any key and my screen would come back on.

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When the screen shuts off due to time or the lid being closed, it doesn't seem to want to turn back on. I can put into standby and bring it back out and it works just fine. But, I'd rather not have to do that all the time.

It's a Dell Inspiron E1505 with a ATI Radeon X1400 video card if that helps at all.

If you need more info, let me know.

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Windows update does not appear in the Services menu.

I read that windows update is linked to windows defender, which I have found is also not running and will not turn back on. When I attempt to turn it on I get error code: 0x80070424, and it also does not appear in the Services menu.

I am using McAfee which I think could be interfering with Defender, I also ran a Security Check that I found through a previous thread, these were the results:

Results of screen317's Security Check version 0.99.43
Windows 7 Service Pack 1 x86 (UAC is enabled)
Internet Explorer 8 Out of date! ``````````````Antivirus/Firewall

[Code]....

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My system is:
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I just upgraded to Windows 7 on my Toshiba Satellite Special Edition laptop that came with Vista 64bit and the other night i downloaded iTunes 10 and told me to restart my machine so I clicked ok and then my laptop shut off and when it came back on the Toshiba screen came up as usual but seemed to stay on longer than normal then it goes to a black screen with a underscore that blinks for a few moments then becomes solid. Ive tried to use the "F" keys to get different boot options because i have the windows 7 ISO disc and a ubuntu disc that I could use but whatever i try my laptop wont process it just does the same thing over and over again and bever proceeds to the actually boot up windows.

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I have a Toshiba laptop running windows 7. It has been running like a well oiled machine since the day I got it.I turned it off to watch TV, then when I turned it back on, the screen shows the Toshiba screen for about 1/4th of a second and then goes black.If I hit F8, F10, or F12 nothing shows up.

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Now, I know that the hard drive itself is alright, that is, the information is still all there still. While I can't give you exact specs, I can tell you that I am on a Dell Studio XPS running Windows 7 home premium 64 bit. I'm at a loss as to what else to do. Despite being a black screen, with just a movable cursor, the system still appears to be running, as every few minutes, it will show the "thinking" cursor, where it shows the little circle next to the arrow.

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