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You cannot start the Windows Firewall service in Windows XP SP2
Resolution. To resolve this problem, use one of the following methods. Method 1: Call the "Setup API InstallHinfSection" function to install Windows Firewall. To install Windows Firewall, follow these steps: Click Start, click Run, type cmd, and then click OK. At the command prompt, type the following command line, and then press ENTER:
Automatically fix Windows security issues - Microsoft Support
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.
Use the System File Checker tool to repair missing or corrupted system ...
If the steps above don't work, you may need to reinstall Windows. For more info, see Windows 10 recovery options. 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.
You cannot start the Windows Firewall service in Windows XP SP2
Resolution. To resolve this problem, use one of the following methods. Method 1: Call the "Setup API InstallHinfSection" function to install Windows Firewall. To install Windows Firewall, follow these steps: Click Start, click Run, type cmd, and then click OK. At the command prompt, type the following command line, and then press ENTER:
Remove malware from your Windows PC - Microsoft Support
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. Use Microsoft Defender Antivirus in Windows 10 or Windows 11 to scan your PC for malware, viruses, or other threats.
Applies To: OneDrive (home or personal), OneDrive for Windows
Uninstall or remove apps and programs in Windows
Windows 10. There are different ways to remove apps and programs, so if you can't find the one you're looking for, you can try another location. Note that some apps and programs are built into Windows and can't be uninstalled. You can try to repair a program first, if it's just not running correctly. Windows 11 Windows 10.
Solve PC problems remotely with Remote Assistance and Easy Connect
Remote Assistance and Easy Connect let someone you trust take over your Windows 10 PC and fix a problem from wherever they are.
Fix sound or audio problems in Windows - Microsoft Support
1. Check your speaker output. 2. Run the audio troubleshooter. 3. Verify that all Windows Updates are installed. 4. Check your cables, plugs, jacks, volume, speaker, and headphone connections. 5. Check sound settings. 6. Fix your audio drivers. 7. Set your audio device as the default device. 8. Turn off audio enhancements. 9. Restart Audio Services
How to start a scan for viruses or malware in Microsoft Defender
Microsoft security help and learning. If you suspect that your device may have malware you should have Microsoft Defender run a scan. Here's how to do that on Windows, Mac, or Android.
Applies To: Microsoft Defender on Android, Microsoft Defender on Mac, Microsoft Defender on Windows
Open Device Manager - Microsoft Support
Windows 10. In the search box on the taskbar, type device manager, then select Device Manager from the menu. Open Device Manager.