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Microsoft warned they under certain conditions, lock your computer when you try to run the latest iteration of Windows that users may cause a black screen.

According to the Redmond company, Windows 7 customers, as well as take advantage of the Windows that affects the issue.

Issue features special security configuration on the particular enterprise environment of the computer that is running since PC need to affect the end user is not likely to affect.

First, both Vista and Windows 7 computer "Aero", you must run the graphics mode.

In addition, the machine also sports some additional security restrictions, as well as added security software .Microsoft is DISA (Defense Information Systems Agency), or the Department of Defense (DoD) requirements mandated by this configuration or that companies are used mainly by explained.

In certain scenarios described above, the user is also a force for locking your computer screen, at least 20 minutes power policy configuration for impartial and have time to go black, you have to leave.

Unlock your computer, try the current Vista Windows 7 as anything but a black screen at this point to the user.

"Enter the credentials, and then the screen goes black, and black as much as 10 minutes.

"Periodic disk drive activity light on your computers disk drive (so you can if you mentioned computer" hard-locked ".

"Some layer security software problems is not specified, you must wait for a period of time, the desktop window manager cause," Microsoft explained.

Microsoft Update or a hotfix for this problem has been to provide at the time the. However, the giant software to stop the "desktop window manager session manager" service is turned off, you can view the article in the way.

However, this service is turned off, rather than to "Aero" graphic display is also going to kill the customers advised. in other words, Aero peek, Aero snap, Aero shake, such as all of the features will be unavailable.

Adding enumeration in the Microsoft solution.

"1. to disable this service:

A. by clicking the Start button, type "services.msc, and then press the Enter key or the" program "comes in the quick search box, click the icon.

B. find and desktop window manager session, double-click Services.

C. "Startup type" drop-down and value, change the "disable.
D. and "Stop" button.

E., click the Apply button, and then click the button.

Or run and use the desktop window manager session service service to set the property at an elevated command prompt, you can run the following command.

net stop UxSms

sc config UxSms start = disabled

Desktop window manager session service through the settings for the command line, you can return to normal:

sc config UxSms start = auto

net start UxSms

2. update your display driver, you can resolve this issue, and then follow the steps in the display adapters manufacturer.

A. start, and "MSINFO32" (without the quotation marks "search programs and folders," type in the text box, and then press ENTER.

B. "system summary in the left section called" setting configuration and components found in the for browse, and then click Show.

C. system information in the right part of the computer display information about your system, you should see it now. "Name "indicate the type of the display adapter.

D. At this point, the  vendor, or a computer vendor for an updated driver to find the Internet, you can move the Web site.

E. if you update the video driver to run Windows Update to be provided.

F. if youre not sure of the driver to install for the last display driver package, find support, computer, contact your hardware vendor.

3. any layer security software black and therefore blocks the screen is rendered, the temporary to the final solution is causing the search.

The removal of the layer in the software or the desktop window manager blocking criteria that have been updated."