Describes how to troubleshoot problems that occur when you install, uninstall, or upgrade a program on a Windows-based computer by using Windows Installer.

Describes how to use the System File Checker tool to troubleshoot missing or corrupted system files in Windows 8.1, Windows 8, Windows 7 or Windows Vista.

The following files are available for download: For 32-bit x86-based systems: Download the x86 MSRT package now. For 64-bit x64-based systems: Download the x64 MSRT package now. Deployment overview. The tool can be deployed in an enterprise environment to enhance existing protection and as part of a defense-in-depth strategy.

Symptoms. Assume that you repeatedly load and unload a registry hive on a computer that is running Windows 8 or Windows Server 2012. In this situation, invalid Transactional Registry (TxR) log files are generated every time that you load the registry hive.

Regsvr32 is a command-line utility to register and unregister OLE controls, such as DLLs and ActiveX controls in the Windows Registry. Regsvr32.exe is installed in the %systemroot%\System32 folder in Windows XP and later versions of Windows. The 64-bit version is %systemroot%\System32\regsvr32.exe.

Run Windows Update a few times. Download and install any available updates in Windows Update, including software updates, hardware updates, and some third-party drivers. Use the Windows Update Troubleshooter to fix Windows 11 Update errors. Check third-party drivers and download any updates.

You can only install this DirectX version through Windows Update in Windows 8.1, Windows RT 8.1 and Windows Server 2012 R2. Note To upgrade DirectX further, you will need to upgrade your operating system.

How to get this update. Install this update. Prerequisites. There are no prerequisites to apply this update. Restart information. You don't have to restart your computer after you apply this update. Removal information. Servicing stack updates (SSUs) make changes to how updates are installed and cannot be uninstalled from the device.

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. Fixes an issue in which an error is logged in the SQL Server error log when you start SQL Server 2008 R2 or SQL Server 2008 SP3, or when a client sends a request to SQL Server 2008 R2 or SQL Server 2008 SP3.

If you're using Windows RT 8.1, you may be asked to enter your Device Encryption recovery key to get to the Startup settings. Enable debugging Starts Windows in an advanced troubleshooting mode intended for IT pros and system admins.