Use this tool to find and remove specific prevalent threats and reverse the changes that they made (see Covered malware families). For comprehensive malware detection and removal, consider using Windows Defender Offline or Microsoft Safety Scanner.

To invoke the classic Outlook diagnostics in the Get Help app directly go to Classic Outlook troubleshooters. Output from the classic Outlook Get Help diagnostic go to this folder, %LocalAppData%\GetHelp. There are some scenarios where the Get Help troubleshooters may not work.

Use this tool to find and remove specific prevalent threats and reverse the changes that they made (see the "Covered malware families" list in the "Release information" section of KB 890830). For comprehensive malware detection and removal, consider using Windows Defender Offline or Microsoft Safety Scanner.

After October 14, 2025, Microsoft will no longer provide free software updates from Windows Update, technical assistance, or security fixes for Windows 10. Your PC will still work, but we recommend moving to Windows 11. Learn more. Note: Use these steps for Windows programs.

Microsoft is retiring the Windows legacy inbox Troubleshooters, such as Keyboard troubleshooter and Speech troubleshooter, and the Microsoft Support Diagnostic Tool (MSDT) that runs them.

For technical support, go to Contact Microsoft Support, enter your problem and select Get Help. If you still need help, select Contact Support to be routed to the best support option.

Get started with Microsoft Defender identity theft monitoring. Criminals are constantly trying to trick you into revealing your personal information. Learn to spot scams. Attackers will send you fake emails that look legitimate, hoping to get personal information. Learn how to spot phishing emails.

CalCheck is a program that checks your Outlook calendar for problems, and performs various checks on general settings, such as permissions, free/busy publishing, delegate configuration, and automatic booking.

Real-time protection is a feature in the Windows Security app that continuously monitors your device for potential threats such as viruses, malware, and spyware. This feature ensures that your device is actively protected by scanning files and programs as they are accessed or executed.

We'll show you self-help options first. Additional help is available if you need it, including live chat with a Microsoft specialist. Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.