Solid Color Background Causes 30 Seconds Delay During the Logon Process in Windows 7



You think computer that runs on Windows 7 would perform a little bit fast if the desktop background is set to solid color. It’s quite surprising that in fact the logon process would actually take 30-second longer than when desktop background is set to use image files.

And Microsoft has confirmed that this is a bug in both Windows 7 and Windows Server 2008 R2, and has provided a hotfix to fix it.

So if you are on Windows 7 and

  • has set a solid color as the desktop background;
  • the desktop window Manager session manager service is running, and ;
  • log on locally.

you may be effected by this bug. To fix this 30-second delay issue, you can either

Set an image file that has solid color as the desktop background;


Change the DelayedDesktopSwitchTimeout registry key value to 5 in HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System


Obtain the hotfix to get the bug fixed permanently.

If you are like me using fancy themes with fancy high-definition images as desktop background, you can safely ignore this bug.

Check out this Microsoft KB (977346) for more detailed information.



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