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Troubleshhot Fix restart problems after you install update rollup 2919355

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Hotfix Download Available Symptoms After you install Update Rollup 2919355 (April 2014) for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2, or after you install any of these systems from media that includes this update rollup, you cannot restart the computer because the computer experiences a restart loop. Update Rollup 2919355 may have been installed automatically through Windows Update (WU) or through Windows Server Update Services (WSUS) in your environment. Computers that start from certain Serial Attached SCSI (SAS) storage controllers are affected by this problem. This includes, but is not limited to, the following controller drivers: Dell H200 PERC controller IBM x240 with on-board LSI SAS2004 ROC controller LSI 2308 on-board controllers LSI 9211-4i controllers LSI 9211-8i controllers LSI SAS 9211 Supermicro X10SL7-F motherboard If the "Automatically restart" option to set the computer behavior after a failure is disabled, you ...

Troubleshoot Unable to log on if the boot partition drive letter has changed

Unable to log on if the boot partition drive letter has changed Symptoms After you try to log on to your Windows 2000-based computer by using a valid user name and password, the  Loading your personal settings dialog box is displayed, followed by the  Saving your settings  dialog box. However, the desktop does not appear, and the  Welcome to Windows logon screen is displayed again. Note  If the paging file is located on the system or boot partition, you may also receive the following warning message before returning to the "Welcome to Windows" logon screen: [Limited Virtual Memory] Your system has no paging file, or the paging file is too small. Cause This problem can occur if your Windows 2000 boot partition drive letter does not match the drive letter assigned during the initial Windows 2000 Setup. Windows 2000 maintains a record of drive letters in a registry based database and re-assigns drive let...

Troubleshoot How to restore the system/boot drive letter in Windows

How to restore the system/boot drive letter in Windows Applies to:  Microsoft Windows XP Home Edition Microsoft Windows XP Professional Microsoft Windows Server 2003 Enterprise x64 Edition   More IN THIS TASK SUMMARY Change the System/Boot Drive Letter Summary Warning  Do not use the procedure that is described in this article to change a drive on a computer where the drive letter has not changed. If you do so, you may not be able to start your operating system. Follow the procedure that is described in this article only to recover from a drive letter change, not to change an existing computer drive to something else. Back up your registry keys before you make this change. For more information, click the following article number to view the article in the Microsoft Knowledge Base: 249321  Unable to log on if the boot partition drive letter has changed This article describes how to cha...