Essential Windows Repair Commands

Here is a Windows 11 Essential Windows Repair Commands with a focus on network troubleshooting guide. This includes command-line tools and instructions helpful for diagnosing and resolving common network issues.

Best Practice: Backup your data before using these tools.

System File Checker (SFC) helps replace corrupted files with cached copies. Run this command in elevated Command Prompt and may take 10-30 minutes. This process fixes integrity issues in C:\Windows\System32.

Deployment Imaging Service and Management Tool (DISM) is Used to fix Windows image and servicing problems. Run this command after SFC does not fix the issue. It connects to Windows Update to replace corrupted files. This command requires internet to download clean system files.

Check Disk (CHKDSK)

Scans and repairs disk errors.

• : Fixes errors.

• : Recovers readable info from bad sectors.

• Prompts reboot if C: is in use.

Basic Network Reset Commands

Reset TCP / IP Stack -> Resets the TCP/IP stack to its default state.

Reset Winsock Catalog -> Fixes socket-related errors (e.g., can't connect to the internet).

Flush DNS Cache -->Clears the DNS resolver cache, useful for DNS errors.

IP Address & DNS Troubleshooting

Release IP Address

Renew IP Address

Display IP Configuration --> Shows detailed IP, DNS, and adapter info.

Check Network Connectivity

Ping a Website (Test Internet)

Ping Your Default Gateway --> Replace with your actual default gateway IP.

Trace Network Path --> Shows each hop between your PC and destination server.

Advanced Network Tools

Check Open Network Connections --> Lists all active connections and their ports.

Check Network Adapters

Reset Network Adapter Settings --> Run all these in sequence for a complete adapter reset.

Additional Diagnostic Tools

Run Network Troubleshooter

Open Network Reset Settings (GUI) (Scroll down and click "Network reset".

Optional Cleanup

Clear ARP Cache

Show DNS Resolver Cache

Firewall & Proxy Check

Show Proxy Settings

Reset WinHTTP Proxy

Once you have run the necessary commands, it is a good idea to restart your computer. If issues persist, proceed to update your network drives via Device Manager or reinstalling the adapter.

About the Author

Nicholas Mutsaerts is an experienced IT Support Specialist focused on Windows, macOS, and Linux environments, and tier 2 help desk support. Passionate about empowering users through clear guidance and technical training.