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Windows 7: Black Login Screen


23 Aug 2011   #1

Windows 7 Professional x64
 
 
Black Login Screen

I have tried to find an answer to my problem but most of the time my search results have to do with changing login screen wallpaper and icons, etc.

In Windows 7 Professional x64, when I turn my computer on, I see the blue welcome screen and then the monitor goes black except for 7 small blue dashes at the top left of the screen. The screen remains black as the computer continues to boot and then my desktop appears normally.

It never did this before (only recently started) and I first noticed it when I scheduled a boot disk check. Previously, I could observe the disk check steps running and see the results; now the screen is black while the disk check runs.

This may or may not have started after a Windows Update but I am not sure. It is a minor issue since my computer boots and runs normally but I am wondering if there is a tweak or something I can do enable me to see the screen.

Thanks

My System SpecsSystem Spec
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23 Aug 2011   #2

64-Bit W7 Ult_sp1
 
 

how did you change the screen - was it via the BIOS settings
or was it via the "personalize" option (after a right-click on the desktop)..??

what I'm asking is, do you mean the boot-up screen, or the Windows7 desktop..?
My System SpecsSystem Spec
24 Aug 2011   #3

Windows 7 Professional x64
 
 

Thank you BugMeister

I did nothing to change the screen, at least not intentionally. I periodically run a disk check and it was on such an occasion that the problem suddenly appeared. I also did not make any BIOS changes nor did I "personalize" my desktop.

I start the computer; the BIOS POST runs normally; then the screen goes black except for the blue dashes at the top of the screen; then the Welcome screen comes on (I bypass password logon); and then the desktop appears.

Normally, the disk check would run after the BIOS POST and before winlogon. It still does but the screen is black so I cannot see the disk check progress. And, as I mentioned, once at the desktop, Windows runs normally.
My System SpecsSystem Spec
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24 Aug 2011   #4

64-Bit W7 Ult_sp1
 
 

you may have inadvertantly set the disc check to run at boot up..

see Option One here for info on how to cancel a scheduled disc check:
Check Disk - Reset
My System SpecsSystem Spec
24 Aug 2011   #5

Windows 7 Professional x64
 
 

Thank you again BugMeister

The issue is unrelated to the disk check; disk check only runs when I select it through the tools menu. I'm sorry if I confused you but I only used disk check as an example of what I see, or don't see, while Windows loads. In other words, the black screen (with the blue dashes) always appears whenever I logon. If I am not running disk check, it remains black while Windows loads for maybe 10-15 seconds. If I am running a disk check, then it remains black for the several minutes while the check is running. Regardless, whether disk check is running or not, I used to be able to observe the opening screen.


Since I posted this, I noticed that the forum indicated related posts or threads; I see others have had the same issue but apparently no one here was able to diagnose the problem. I am now content to ignore the issue since it is a minor inconvenience and does not affect the operating system otherwise.

Thank you again for your consideration.

S.
My System SpecsSystem Spec
24 Aug 2011   #6
Microsoft MVP

64-bit Windows 8.1 Enterprise
 
 

Hello Sally, and welcome to Seven Forums.

Did you by chance try to change the boot screen (not the same as the log on screen)? Vista does the same thing when you change it's boot screen and run chkdsk at startup.

You might see if running a sfc /scannow command may be able to help.

Hope this helps,
Shawn
My System SpecsSystem Spec
25 Aug 2011   #7

Windows 7 Professional x64
 
 

Thank you Brink.

As I mentioned, the only intended changes to my operating system would have occurred as a result of Windows Update patches; I am unable to recall with certainty but I have no specific recollection that the issue appeared after applying patches. Since I regularly perform full/incremental backups, I have disabled system restore, in which I have no confidence anyway. Unfortunately, I had not noticed the black screen for some time and my archived backup files (that go back one month) all display the same screen.

I have already run the system file checker, as well as the various action center troubleshooting/repair options to no avail. I am also fussy about keeping drivers updated, especially my graphics driver.

I have made no intentional changes to my boot or logon screens. I dual-boot Windows XP (it's hard for me to let go) and Windows 7 and the Windows boot manager screen appears normally and is set to automatically launch Windows 7. Once Windows 7 launches, the screen goes black, as it always has and, after about 10 seconds, the blue dashes appear at the top of the screen. I assume that the blue dashes represent the "missing" screen.
My System SpecsSystem Spec
25 Aug 2011   #8

Windows 7 Professional x64
 
 
Solved

After giving the matter more thought, I decided not to quit on it and wrote down everything I could think of that had to do with winlogon. Admittedly, there are some things I did not initially check simply because I either did not changed them or otherwise do any tweaking of my operating system.

To my surprise, I discovered that in the boot tab in system configuration (msconfig) the "No GUI boot" option was checked. How and why this happened I do not know (no one has access to my computer and I did not check it). I unchecked it.

Although the screen background color is black (it used to be blue) I can now see the "Windows is starting" screen with its logo; no more black screen with blue dashes. To test it, I ran chkdsk which I am now able to observe running.

Even though my logon screen has lost its pretty blue background (sorry guys) I am a happy girl. Thank you all so much for inspiring me to keep searching. Who knows, maybe someone else here who experiences this issue will find this a solution.

S.
My System SpecsSystem Spec
25 Aug 2011   #9
Microsoft MVP

64-bit Windows 8.1 Enterprise
 
 

Sally,

That's great news. You might be able to use the tutorial below to see if you can restore your log on screen's background. I have the default image available in the yellow TIP box at the top of the tutorial if you do not still have it.

Log On Screen - Change
My System SpecsSystem Spec
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 Black Login Screen




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