How to Fix Slow Internet on Windows

Slow internet on Windows is often caused by a mix of network misconfigurations, background apps using bandwidth, outdated network drivers, or corrupted DNS and TCP/IP settings. In some cases, temporary files and leftover network-related clutter can also interfere with normal performance. The result is a connection that feels unstable or much slower than what your internet plan should deliver.

Common Symptoms

• Web pages take a long time to load
• Downloads are unusually slow or keep stalling
• Video calls freeze, lag, or drop quality
• Streaming buffers often, even on a fast connection
• Internet speed tests show much lower results than expected

How to Fix It Manually

1. Restart your PC and network equipment

   1. Save your work and restart your computer.
   2. Unplug your modem and router from power for 30 seconds.
   3. Plug them back in, wait for the connection lights to stabilize, then test your internet again.

2. Check for apps using too much bandwidth

   1. Open Task Manager with Ctrl+Shift+Esc.
   2. Click More details if needed.
   3. Go to the Processes tab and look for apps using the network heavily.
   4. Close anything unnecessary, especially cloud sync apps, game launchers, streaming apps, or large downloads running in the background.

3. Run the Windows network troubleshooter

   1. Press Windows + I to open Settings.
   2. Go to System > Troubleshoot > Other troubleshooters.
   3. Find Network and Internet and click Run.
   4. Follow the prompts and apply any recommended fixes.

4. Reset DNS and network settings

   1. Click Start, type cmd.
   2. Right-click Command Prompt and choose Run as administrator.
   3. Run these commands one at a time, pressing Enter after each:
      • ipconfig /flushdns
      • ipconfig /release
      • ipconfig /renew
      • netsh winsock reset
      • netsh int ip reset
   4. Restart your PC after the commands finish.

5. Disable unnecessary startup and background apps

   1. Open Settings with Windows + I.
   2. Go to Apps > Startup.
   3. Turn off apps you do not need starting automatically.
   4. Then go to Settings > Apps > Installed apps and remove software you no longer use, especially VPNs, toolbars, or network-related utilities that may interfere with connectivity.

6. Update or reinstall your network adapter driver

   1. Right-click the Start button and select Device Manager.
   2. Expand Network adapters.
   3. Right-click your Wi-Fi or Ethernet adapter and choose Update driver.
   4. Select Search automatically for drivers.
   5. If the issue continues, right-click the adapter again, choose Uninstall device, restart your PC, and let Windows reinstall it.

7. Reset the full network stack in Windows

   1. Open Settings > Network & internet > Advanced network settings.
   2. Click Network reset.
   3. Select Reset now.
   4. Restart your PC and reconnect to your Wi-Fi network afterward.

Fix It Automatically with Kudu

Kudu can scan for network-related clutter, broken settings, and common Windows issues that slow down your internet connection. Instead of manually resetting multiple components and hunting through settings, it helps clean up the system and apply safe fixes in one place.

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