The sfc /scannow command will scan all protected system files, and replace corrupted files with a cached copy that is located in a compressed folder at %WinDir% \System32\dllcache. The %WinDir% placeholder represents the Windows operating system folder. For example, C:\Windows.

PC Health Check app brings you up to date info on your Windows device health, helping you take action to improve your device performance and troubleshoot performance problems. It is periodically updated based on customer feedback to help you make the most of your Windows PC. How to open PC Health Check.

When would I want to run a scan? If you suspect your device may be infected, or if you want to confirm that a previous infection appears to be cleaned, you should have Defender start a scan. Signs that your device might have malware include: Suddenly running much slower than usual. Significant decrease in battery life.

Visit the following Microsoft web site to download and install the free Windows Live safety scanner: http://onecare.live.com/site/en-us/default.htm. Click Protection from the list of options. Click Protection Scan and then follow the instructions to download and install the safety scanner.

Gaming Services Repair Tool for PC. Notifications. Alert. Minecraft on PC Update Error. We are aware of an issue with the latest update to Minecraft on PC via the Xbox app. Check here for known game issues. Info. Questions about MLB The Show 24?

The Microsoft Support and Recovery Assistant works by running tests to figure out what's wrong and offers the best solution for the identified problem. It can currently fix Office, Microsoft 365, or Outlook problems.

Windows 7 Windows 8.1 Windows 10. Follow these steps to automatically diagnose and repair Windows security problems by turning on UAC, DEP protection, Windows Firewall, and other Windows security options and features. Select the Download button on this page.

View the results of your scan. Open your Windows Security settings. Select Virus & threat protection > Protection history. The Microsoft Defender Offline scan will automatically detect and remove or quarantine malware. Learn how to remove malware from your PC.

This troubleshooter addresses devices which are not scanning for updates for certain internal reasons. How does the troubleshooter mitigate the problem? The troubleshooter resets the update scanning process which should prompt the device to start a new scan.

If a Microsoft 365 application such as Word or Excel isn’t working correctly, sometimes restarting it will fix the problem. If that doesn’t work, you can try repairing it. When you’re done, you might need to restart your computer. The steps to access the repair tool vary depending on your operating system.