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.

Learn how to update your Xbox console offline with step-by-step instructions and troubleshooting tips for a smooth experience.

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.

With System Restore you can revert your PC's state to a previous point in time. This can be particularly useful when troubleshooting issues caused by recent changes, such as software installations, driver updates, or system settings modifications.

Activation helps verify that your copy of Windows is genuine and hasn’t been used on more devices than the Microsoft Software License Terms allow. This article will help you troubleshoot and fix common activation errors in Windows. For help finding your product key, see Find your Windows product key.

Learn how to run System File Checker in Windows to check if your computer has problems with files.

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.

Need to know which version of Windows 11 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. Need to know about required disk space, error codes, removing an installed update, or other update questions? Find more help at Windows Update: FAQ. Note:

To resolve this issue, follow these methods: Method 1: Clean the CD or DVDTo do this, use a CD or DVD disc-cleaning kit. Or, use a soft, lint-free cotton cloth to gently wipe the silver side of the disc. Do not use paper cloth, as this can scratch the plastic or leave streaks.

When you try to install, update or start a program or a file, you receive the following error message: Error: Windows cannot access the specified device, path, or file. You may not have the appropriate permission to access the item.