Microsoft ended support for Windows Server 2003 on July 14, 2015. This change has affected your software updates and security options. Learn what this means for you and how to stay protected. Describes how to reset the Hosts file back to the default.

Find your computer name in Windows 10. Open the Control Panel. Click System and Security > System. On the View basic information about your computer page, see the Full computer name under the section Computer name, domain, and workgroup settings.

Symptoms. Consider the following scenario: You install Windows 8. You change the Hosts file by specifying custom IP-address-to-host-name mappings to prevent users from browsing to some websites. You run a scan in Microsoft Windows Defender.

View your PC info. Type about in the search box on your taskbar, and then select About your PC.

Windows includes a tool called Microsoft System Information (Msinfo32.exe). This tool gathers information about your computer and displays a comprehensive view of your hardware, system components, and software environment, which you can use to diagnose computer issues.

When you’re connected to the internet and using a proxy server while browsing the web, that traffic goes through the proxy server instead of coming directly from your Windows 11 PC. A proxy server can be used when you’re connected using Wi-Fi or Ethernet.

Credential Manager lets you view and delete your saved credentials for signing in to websites, connected applications, and networks. To open Credential Manager, type credential manager in the search box on the taskbar and select Credential Manager Control panel.

If some Windows functions aren't working or Windows crashes, use the System File Checker to scan Windows and restore your files. Though the steps below might look complicated at first glance, just follow them in order, step-by-step, and we’ll try to get you back on track.

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.

Use Remote Desktop on your Windows, Android, or iOS device to connect to a Windows 10 PC from afar. Here's how to set up your PC to allow remote connections and then connect to the PC you set up.