Use the System File Checker tool to repair missing or corrupted system files. When critical Windows system files are missing or corrupted, some Windows features may stop working correctly or Windows may stop responding altogether.

Microsoft now combines the latest servicing stack update (SSU) for your operating system with the latest cumulative update (LCU). SSUs improve the reliability of the update process to mitigate potential issues while installing updates.

First, you'll need to download the troubleshooter. Download troubleshooter. If you see the File Download box when you start downloading, select Run or Open. The troubleshooter provides steps for you to follow. If a program isn't listed in the uninstall options, you'll be asked for that program's product code.

To install this update, use one of the following Windows and Microsoft release channels. This update downloads and installs automatically from Windows Update and Microsoft Update. This update downloads and installs automatically from Windows Update for Business in accordance with configured policies.

Extract this .zip file to get the Defender update package (defender-dism- [x86|x64|arm].cab) and an updating tool (DefenderUpdateWinimage.ps1) that assists the update operation for OS installation images. The following prerequisites apply to running this updating tool (DefenderUpdateWinImage.ps1):

This guide provides detailed steps to troubleshoot and resolve Windows Update problems effectively. If you are using a Windows 11 device, start by running the automated Windows Update troubleshooter in the Get Help app. It will automatically run diagnostics and attempt to fix most of the problems.

Learn how to update your security processor or TPM firmware to protect Windows 10 and your device from attacks by malicious software.

System File Checker is a utility in Windows that checks for problems with files on your computer. To run it, follow these steps: Make sure you've installed the latest updates for Windows, and then restart your machine. To find out more, read Update Windows.

To fix this problem automatically, run the "Fix problems that programs cannot be installed or uninstalled" troubleshooter to repair issues that block program installation or removal because of corrupted registry keys. Important To perform many of the methods and steps in this article, you must be logged on to your computer as an administrator.

Need to know which version of Windows 10 is running on your device? You can check quickly and easily. In the search box on the taskbar, type winver, then select winver from the list of results. This troubleshooter assists customers whose machines are not yet updated to the latest release, Windows 10 Version 1607.