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Fix Windows System Components and Core Features

Troubleshoot broken Start Menu, Taskbar, File Explorer, Windows Search, Task Manager, right-click menus, clipboard, and other core Windows features on Windows 10 and 11.

Windows core features — Start Menu, Taskbar, File Explorer, Search, Task Manager — are used constantly. When they break, everything feels broken. These components depend on system services, shell extensions, and registry settings that can become corrupted by updates, third-party software, or system file damage. This hub covers every system-level troubleshooting guide and repair. If a core Windows feature stopped working, start here.

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Fix Guides

Automated Repairs

Error Codes

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Troubleshooting Guides

In-depth guides with symptoms, causes, and step-by-step solutions for each problem.

Automated One-Click Repairs

These automated repairs fix the most common problems in this category with a single click.

Related Error Codes

Common Windows error codes associated with this topic. Click any code for a detailed fix guide.

0x80004005

E_FAIL

0x80070057

E_INVALIDARG

Browse all 160+ error codes →

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Troubleshooting Guides

Start Menu Not Working

Taskbar Not Working in Windows 11

Windows Explorer Keeps Crashing

Windows Search Not Working

Task Manager Not Opening

Right-Click Not Working

Copy and Paste Not Working

Microsoft Store Not Working

Microsoft Store Downloads Stuck

Windows Defender Not Working

Windows Firewall Not Working

Windows Activation Problems

Activate Windows Watermark

Sleep Mode Not Working

Battery Draining Fast

Windows Terminal Not Opening

Windows Services Failing to Start

Windows Registry Errors

User Profile Corrupted

Fonts Corrupted

Recycle Bin Corrupted

Task Scheduler Not Working

File Explorer Crashes on Right-Click

Startup Programs Not Running

Windows Sandbox Not Starting

Can't Reset Windows Hello PIN

Lock Screen Not Showing

Default Apps Keep Resetting

WMI Repository Corrupted

Action Center Not Opening

Snap Layouts Not Working

Clipboard Cloud Sync Broken

Xbox Game Bar Not Opening

Magnifier Tool Stuck

Narrator Keeps Activating

System Tray Icons Missing

Quick Access Not Working

Photo Viewer Missing

Right-Click Context Menu Slow

Understanding Event Log Errors

Temp Files Won't Delete

Windows Activation Error

Windows Security Won't Open

Suspicious Startup Programs

SFC Found Errors It Can't Fix

Windows PIN Not Working

File Associations Broken

Windows Backup Extremely Slow

Device Manager Empty or Blank

Task Scheduler Not Running

Lock Screen Slideshow Broken

Firewall Blocking an Application

Explorer Address Bar Not Working

Screensaver Not Working

Power Plan Missing

Recovery Drive Creation Failed

Boot Manager Missing

Defender Real-Time Won't Enable

Component Store Corruption

Hibernate Not Working

Sandbox Not Available

Slow Startup After Login

Event Viewer Not Opening

Can't Boot into Safe Mode

System Image Backup Failed

Magnifier Stuck On

Disk Signature Collision

Firewall Rules Corrupted

Touch Keyboard Not Opening

Recovery Environment Missing

Local Account Locked Out

Old Program Compatibility

Focus Assist / DND Not Working

Dynamic Lock Not Working

Power Button Not Working

Auto Brightness Keeps Changing

Closing Lid Doesn't Sleep

Monitor Not Waking from Sleep