How to Use Windows System Tools to Fix Common Problems Part 4

 

💡 Introduction

Having issues with a slow PC, crashing apps, or poor network performance? You don’t always need third-party tools — Windows includes built-in system utilities that can identify and solve many common problems in minutes.

This post highlights 10 essential tools to fix problems without calling a technician.

🛠️ 1. System File Checker (SFC Scan)

Fix corrupted or missing system files.

  • Run Command Prompt as Admin

  • Type: sfc /scannow

  • Repairs Windows installation issues silently

⚙️ 2. DISM Tool

Fix deeper system image corruption (use with SFC).

  • Run Command Prompt as Admin

  • Type: DISM /Online /Cleanup-Image /RestoreHealth

  • Use if sfc /scannow doesn't resolve errors

🖥️ 3. Device Manager

Fix driver issues and hardware problems.

  • Check for yellow warning icons

  • Update, disable, or roll back drivers

  • Run: Windows + X > Device Manager

🌐 4. Network Troubleshooter

Resolve Wi-Fi drops, no internet, or DNS failures.

  • Settings > Network & Internet > Status > Network Troubleshooter

  • Auto-detects and fixes most basic issues

🔌 5. Power Troubleshooter

Solve sleep/wake, shutdown, or charging issues.

  • Control Panel > Troubleshooting > Power

  • Fixes misconfigured power plans and hibernation issues

🔎 6. Storage Sense

Clear junk files automatically to improve performance.

  • Settings > System > Storage > Turn on Storage Sense

  • Automatically deletes temp files and empty recycle bin

📅 7. Windows Update Troubleshooter

Fix stuck updates or failed installations.

  • Settings > Update & Security > Troubleshoot > Windows Update

  • Resets update components and clears the queue

🖱️ 8. Hardware and Devices Troubleshooter (hidden tool)

Fix issues with USB, mouse, keyboard, and printers.

  • Run: Windows + R > msdt.exe -id DeviceDiagnostic

  • Scans for hidden hardware faults

🔒 9. Startup Repair (Advanced Boot)

Fix boot failure, blue screen, or system not starting.

  • Hold Shift while clicking Restart > Troubleshoot > Advanced Options > Startup Repair

  • Automated repair for non-booting PCs

🧰 10. Reset This PC

Last resort fix to restore Windows to factory state.

  • Settings > Update & Security > Recovery > Reset This PC

  • Choose “Keep my files” or “Remove everything”