Problems with applications that run at startup can cause logon delays or even prevent you from completing Windows startup in normal mode. One way you can simplify your configuration is to disable startup applications.
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By holding down the Shift key during the logon process, you can prevent the operating system from running startup programs or shortcuts in the following folders:
* %SystemDrive%\Users\username\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup
* %SystemDrive%\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup
To disable the applications or shortcuts in the preceding folders, you must hold down the Shift key until the desktop icons appear. Holding down the Shift key is a better alternative than temporarily deleting or moving programs and shortcuts, because this procedure affects only the current user session.
To use the Shift key to disable applications and shortcuts in startup folders, log off the computer and then log on again. Immediately press and hold down the Shift key. Continue to hold down the Shift key until the desktop icons appear. If you can log on successfully, you have isolated the cause of the problem to your startup applications. Next, you should use the System Configuration utility to temporarily disable applications one by one until you identify the cause of the problem. With the cause of the problem identified, you can fix the applica¬tion or permanently remove it from your startup programs.
From the Microsoft Press book The Windows 7 Resource Kit by Mitch Tulloch, Tony Northrup, Jerry Honeycutt, Ed Wilson, and the Windows 7 Team at Microsoft.
Subject: Use the Shift Key to Temporarily Disable Startup Application 
Thu Mar 04, 2010 1:42 pm
