Windows Troubleshooting
Use this guide to narrow down common Windows 10 and Windows 11 problems. Start with the exact symptom and the last change you remember, such as an update, new device or driver installation. Make one change at a time so you can tell which step helped.
Windows Update will not install
- Restart Windows and check the update again.
- Confirm the device has a stable internet connection and enough free storage.
- Open Settings and run the Windows Update troubleshooter if it is available on your version.
- Write down the full error code before trying advanced repair steps.
A Windows PC is running slowly
- Restart the PC and close apps you are not using.
- Check Task Manager for an app using unusually high CPU, memory or disk resources.
- Review free storage and install Windows updates from Settings.
- If the slowdown began after a new app or driver, test whether removing or rolling back that change helps.
Sound, Bluetooth and driver problems
Check that the correct output device is selected, Bluetooth is enabled and the device is charged or in pairing mode. For drivers, prefer Windows Update or the official support site for your computer manufacturer. Avoid third-party driver download bundles.
When to use recovery options
Before a reset, reinstall or recovery operation, back up important files and make sure you have access to account recovery details. If you see repeated blue screens, disk errors or signs of hardware failure, stop repeating software fixes and record the exact message.
Related areas: Wi-Fi and internet fixes and printer troubleshooting.