Top 10 Windows 10 Problems & How to Fix Them (2025 Guide)

Last Updated: January 15, 2026

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Top 10 Common Windows 10 Problems & How to Fix Them

Windows 10 is a powerful and widely used operating system, but like any software, it has its fair share of issues. From sudden crashes to mysterious slowdowns, users often encounter frustrating problems that disrupt productivity.

If you’re struggling with Windows 10 glitches, don’t worry—you’re not alone. In this guide, we’ll explore the most common Windows 10 faults and provide easy, step-by-step solutions to fix them.

1. Windows 10 Running Slow? Here’s How to Speed It Up

Problem:
Over time, Windows 10 can become sluggish due to background processes, bloated startup programs, or insufficient RAM.

Solution:

• Disable startup programs: Press Ctrl + Shift + Esc → Startup tab → Disable unnecessary apps.
• Run Disk Cleanup: Search for Disk Cleanup → Select drive → Clean system files.
• Adjust performance settings: Right-click This PC → Properties → Advanced system settings → Performance Settings → Choose Adjust for best performance.

2. Windows Update Failures & How to Fix Them

Problem:
Updates get stuck, fail to install, or cause errors like 0x80070057 or 0x80240034.

Solution:

• Run Windows Update Troubleshooter:
  Settings → Update & Security → Troubleshoot → Windows Update → Run the troubleshooter.
• Manually reset Windows Update components:
  Open Command Prompt (Admin) and run:

  net stop wuauserv
  net stop cryptSvc
  net stop bits
  net stop msiserver
  ren C:\Windows\SoftwareDistribution SoftwareDistribution.old
  ren C:\Windows\System32\catroot2 catroot2.old
  net start wuauserv
  net start cryptSvc
  net start bits
  net start msiserver

3. Blue Screen of Death (BSOD) Errors

Problem:
Random crashes with errors like CRITICAL_PROCESS_DIED, MEMORY_MANAGEMENT, or DRIVER_IRQL_NOT_LESS_OR_EQUAL.

Solution:

• Check for faulty drivers:
  Press Win + X → Device Manager → Look for yellow exclamation marks.
• Run Memory Diagnostic Tool:
  Search for Windows Memory Diagnostic → Restart and check for RAM issues.
• Update or roll back drivers:
  Right-click the problematic device → Update driver or Roll back driver.

4. Wi-Fi Not Working or Disconnecting Randomly

Problem:
Wi-Fi keeps dropping, won’t connect, or shows “No Internet Access”.

Solution:

• Reset network settings:
  Settings → Network & Internet → Status → Network reset.
• Update Wi-Fi drivers:
  Go to Device Manager → Network adapters → Right-click your Wi-Fi driver → Update driver.
• Disable power-saving mode for Wi-Fi:
  Right-click Wi-Fi driver → Properties → Power Management → Uncheck Allow the computer to turn off this device.

5. High CPU or Disk Usage at 100%

Problem:
System freezes due to high CPU or disk usage caused by System (ntoskrnl.exe), Antimalware Service, or Superfetch.

Solution:

• Disable SysMain (Superfetch):
  Press Win + R → Type services.msc → Find SysMain → Set to Disabled.
• Adjust Windows Search indexing:
  Search for Indexing Options → Modify → Uncheck unnecessary locations.
• Scan for malware:
  Run Windows Defender or a third-party antivirus like Malwarebytes.

6. Audio Not Working in Windows 10

Problem:
No sound, distorted audio, or missing playback devices.

Solution:

• Run Audio Troubleshooter:
  Settings → Update & Security → Troubleshoot → Playing Audio.
• Update audio drivers:
  Device Manager → Sound, video & game controllers → Right-click audio device → Update driver.
• Set default playback device:
  Right-click the speaker icon → Open Sound settings → Choose the correct output device.

7. File Explorer Crashes or Freezes

Problem:
Explorer.exe keeps restarting or becomes unresponsive.

Solution:

• Restart File Explorer:
  Ctrl + Shift + Esc → Task Manager → File Explorer → Restart.
• Clear File Explorer history:
  Open File Explorer → View → Options → Clear history.
• Disable third-party shell extensions:
  Use Autoruns (Microsoft tool) to disable problematic add-ons.

8. Printer Not Working in Windows 10

Problem:
Printer won’t print, shows offline, or gives driver errors.

Solution:

• Run Printer Troubleshooter:
  Settings → Update & Security → Troubleshoot → Printer.
• Reinstall printer drivers:
  Device Manager → Print queues → Right-click printer → Uninstall → Reconnect printer.
• Set printer as default:
  Settings → Devices → Printers & scanners → Select printer → Manage → Set as default.

9. Windows 10 Activation Issues

Problem:
“Windows is not activated” or “Activation error 0xC004C003”.

Solution:

• Re-enter product key:
  Settings → Update & Security → Activation → Change product key.
• Use Microsoft Activation Scripts (for genuine users):
  Download Microsoft Activation Scripts (MAS) from GitHub (trusted source).

10. Start Menu & Cortana Not Working

Problem:
Start button won’t open, Cortana crashes, or search is broken.

Solution:

• Restart Windows Explorer:
  Task Manager → Restart “Windows Explorer”.
• Re-register Start Menu:
  Open PowerShell (Admin) and run:

  Get-AppXPackage -AllUsers | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}

Final Thoughts

Windows 10 is a robust OS, but occasional glitches are inevitable. Most issues can be fixed with basic troubleshooting—updating drivers, running built-in tools, or tweaking settings.

If you’re still facing problems, consider a system restore or clean Windows reinstall as a last resort.

Got more Windows 10 issues? Drop a comment below, and I’ll help you out!

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