Complete PC Troubleshooting Guide

Quick steps to diagnose and fix common computer problems without needing tech support.

1. Start with a Restart

This sounds simple, but a restart clears memory, resets services, and often resolves minor bugs.

2. Identify the Symptom

What exactly is happening? Is it:

• Running slow?
• Freezing randomly?
• Apps not opening or crashing?
• Internet not connecting?

3. Basic Fixes for Common Issues

Try these general steps before going deeper:

• Close unused tabs and apps.
• Check available storage space — free up at least 15% if possible.
• Update your operating system and drivers.
• Run a malware scan using Windows Defender or another reputable tool.

4. Run Built-In Troubleshooters

Windows has several tools to fix itself:

• Settings → System → Troubleshoot → Other troubleshooters
• Try running troubleshooters for Internet, Bluetooth, Audio, etc.

5. Check for Recent Changes

Did the issue start after a new update, app install, or settings change?

• Try uninstalling recently added apps.
• Use System Restore (if enabled) to roll back to a previous working state.

6. Check Startup Impact

Too many programs launching at startup can bog down performance.

• Open Task Manager → Startup tab → Disable unnecessary apps

7. Test in Safe Mode

Safe Mode loads only essential services. If the issue disappears here, the cause is likely a driver or third-party app.

• Press Win + R, type msconfig, go to Boot tab → Safe Boot
• Or hold Shift while clicking “Restart” → Troubleshoot → Advanced Options → Startup Settings

8. Hardware Check

• Run Windows Memory Diagnostic (mdsched.exe) to check RAM
• Check hard drive health using chkdsk or tools like CrystalDiskInfo

9. When to Ask for Help

If you’ve tried all the above and still have issues, it might be time for a professional. Bring your notes — what you’ve tried will help techs solve the problem faster (and cheaper).