Windows Help Center

A problem-first Windows help center designed to get users from symptom to solution without pushing one product for every issue.

PC Slow Diagnostic

Narrow down startup, CPU, memory, disk, storage and heat causes.

Windows Error Lookup

Search common error codes and safe first steps.

BSOD Stop Code Lookup

Understand common blue-screen stop codes.

Driver Troubleshooter

Device Manager and official-source driver guidance.

Wi-Fi Troubleshooter

Adapter, router, DNS and connection checks.

Printer Troubleshooter

Offline, queue, spooler, driver and connection issues.

Windows Update Troubleshooter

Stuck downloads, failed updates and restart problems.

Bluetooth Troubleshooter

Missing Bluetooth, pairing and disconnect issues.

Audio Troubleshooter

No sound, microphone and driver issues.

USB Troubleshooter

Unknown device, port and storage checks.

Windows Process Lookup

Understand common Windows processes.

File Extension Lookup

Identify common Windows file types.

High CPU Troubleshooter

Find sustained CPU usage causes.

High Memory Troubleshooter

Find RAM pressure and memory-heavy apps.

100% Disk Troubleshooter

Investigate sustained disk activity.

Windows Service Troubleshooter

Fix service failures without random disabling.

App Crash Troubleshooter

App not opening, freezing or crashing.

Storage Calculator

Calculate free-space percentage.

RAM Requirement Calculator

Estimate practical RAM needs.

Download Time Calculator

Estimate transfer time from speed and size.

Windows Update

Update Stuck At 0 Percent

Step-by-step Windows troubleshooting guide.

Update Stuck At 100 Percent

Step-by-step Windows troubleshooting guide.

Update Failed To Install

Step-by-step Windows troubleshooting guide.

Update Keeps Restarting

Step-by-step Windows troubleshooting guide.

Update Rollback Loop

Step-by-step Windows troubleshooting guide.

Update Error 0X80070002

Step-by-step Windows troubleshooting guide.

Update Error 0X80070005

Step-by-step Windows troubleshooting guide.

Update Error 0X800F081F

Step-by-step Windows troubleshooting guide.

Update Error 0X80240034

Step-by-step Windows troubleshooting guide.

Update Error 0X80073712

Step-by-step Windows troubleshooting guide.

Update Error 0X80070422

Step-by-step Windows troubleshooting guide.

Update Error 0X80070643

Step-by-step Windows troubleshooting guide.

Update Error 0X8007000D

Step-by-step Windows troubleshooting guide.

Update Error 0X80070020

Step-by-step Windows troubleshooting guide.

Update Error 0X800F0922

Step-by-step Windows troubleshooting guide.

Boot & Recovery

Windows 11 Won’T Boot

Step-by-step Windows troubleshooting guide.

Automatic Repair Loop

Step-by-step Windows troubleshooting guide.

Startup Repair Couldn’T Repair Your Pc

Step-by-step Windows troubleshooting guide.

Black Screen After Login

Step-by-step Windows troubleshooting guide.

Black Screen Before Login

Step-by-step Windows troubleshooting guide.

Windows Stuck On Loading Screen

Step-by-step Windows troubleshooting guide.

Windows Stuck On Restarting

Step-by-step Windows troubleshooting guide.

Windows Stuck On Shutting Down

Step-by-step Windows troubleshooting guide.

No Bootable Device After Update

Step-by-step Windows troubleshooting guide.

Boot Configuration Data Error

Step-by-step Windows troubleshooting guide.

Inaccessible Boot Device

Step-by-step Windows troubleshooting guide.

Safe Mode Not Working

Step-by-step Windows troubleshooting guide.

System Restore Failed

Step-by-step Windows troubleshooting guide.

Recovery Environment Missing

Step-by-step Windows troubleshooting guide.

Reset This Pc Failed

Step-by-step Windows troubleshooting guide.

Performance

Windows 11 Running Slow

Step-by-step Windows troubleshooting guide.

Pc Slow After Update

Step-by-step Windows troubleshooting guide.

Pc Slow After Startup

Step-by-step Windows troubleshooting guide.

Pc Freezes Randomly

Step-by-step Windows troubleshooting guide.

Pc Lagging With Low Cpu Usage

Step-by-step Windows troubleshooting guide.

100 Percent Disk Usage

Step-by-step Windows troubleshooting guide.

High Cpu Usage

Step-by-step Windows troubleshooting guide.

High Memory Usage

Step-by-step Windows troubleshooting guide.

Desktop Window Manager High Gpu

Step-by-step Windows troubleshooting guide.

System Interrupts High Cpu

Step-by-step Windows troubleshooting guide.

Service Host High Cpu

Step-by-step Windows troubleshooting guide.

Antimalware Service Executable High Cpu

Step-by-step Windows troubleshooting guide.

File Explorer High Cpu

Step-by-step Windows troubleshooting guide.

Windows Search Indexer High Cpu

Step-by-step Windows troubleshooting guide.

Slow Shutdown Windows 11

Step-by-step Windows troubleshooting guide.

Apps & Installation

Program Will Not Install

Step-by-step Windows troubleshooting guide.

Program Will Not Uninstall

Step-by-step Windows troubleshooting guide.

Msi Installer Not Working

Step-by-step Windows troubleshooting guide.

Another Installation Is Already In Progress

Step-by-step Windows troubleshooting guide.

App Not Opening

Step-by-step Windows troubleshooting guide.

App Keeps Crashing

Step-by-step Windows troubleshooting guide.

App Not Responding

Step-by-step Windows troubleshooting guide.

Application Error 0Xc000007B

Step-by-step Windows troubleshooting guide.

Application Error 0Xc0000142

Step-by-step Windows troubleshooting guide.

Side By Side Configuration Incorrect

Step-by-step Windows troubleshooting guide.

This App Can’T Run On Your Pc

Step-by-step Windows troubleshooting guide.

Windows Installer Service Could Not Be Accessed

Step-by-step Windows troubleshooting guide.

Setup.Exe Not Opening

Step-by-step Windows troubleshooting guide.

Program Compatibility Problem

Step-by-step Windows troubleshooting guide.

Default Apps Keep Resetting

Step-by-step Windows troubleshooting guide.

Microsoft Store

Microsoft Store Not Opening

Step-by-step Windows troubleshooting guide.

Microsoft Store Download Stuck

Step-by-step Windows troubleshooting guide.

Microsoft Store Error 0X80073Cf9

Step-by-step Windows troubleshooting guide.

Microsoft Store Error 0X803F8001

Step-by-step Windows troubleshooting guide.

Microsoft Store Error 0X80072F8F

Step-by-step Windows troubleshooting guide.

Microsoft Store Apps Not Updating

Step-by-step Windows troubleshooting guide.

Microsoft Store Missing

Step-by-step Windows troubleshooting guide.

Gaming Services Install Error

Step-by-step Windows troubleshooting guide.

Xbox App Not Installing Games

Step-by-step Windows troubleshooting guide.

Store Sign In Not Working

Step-by-step Windows troubleshooting guide.

Files & Permissions

Access Denied Folder

Step-by-step Windows troubleshooting guide.

You Need Permission To Perform This Action

Step-by-step Windows troubleshooting guide.

File In Use Cannot Delete

Step-by-step Windows troubleshooting guide.

Folder Keeps Reverting To Read Only

Step-by-step Windows troubleshooting guide.

File Explorer Not Responding

Step-by-step Windows troubleshooting guide.

File Explorer Keeps Crashing

Step-by-step Windows troubleshooting guide.

Windows Cannot Find File

Step-by-step Windows troubleshooting guide.

Long File Path Error

Step-by-step Windows troubleshooting guide.

Corrupted Zip File Windows

Step-by-step Windows troubleshooting guide.

Cannot Rename File

Step-by-step Windows troubleshooting guide.

Cannot Move File To Another Drive

Step-by-step Windows troubleshooting guide.

Recycle Bin Corrupted

Step-by-step Windows troubleshooting guide.

Desktop Icons Disappeared

Step-by-step Windows troubleshooting guide.

Downloads Folder Not Responding

Step-by-step Windows troubleshooting guide.

Onedrive Files Not Syncing

Step-by-step Windows troubleshooting guide.

Drivers & Devices

Unknown Device In Device Manager

Step-by-step Windows troubleshooting guide.

Device Cannot Start Code 10

Step-by-step Windows troubleshooting guide.

Device Stopped Code 43

Step-by-step Windows troubleshooting guide.

Driver Power State Failure

Step-by-step Windows troubleshooting guide.

Driver Unavailable

Step-by-step Windows troubleshooting guide.

Driver Installation Failed

Step-by-step Windows troubleshooting guide.

Device Manager Keeps Refreshing

Step-by-step Windows troubleshooting guide.

Device Disappeared After Update

Step-by-step Windows troubleshooting guide.

Pci Device Driver Missing

Step-by-step Windows troubleshooting guide.

Sm Bus Controller Driver Missing

Step-by-step Windows troubleshooting guide.

Base System Device Driver Missing

Step-by-step Windows troubleshooting guide.

Network Adapter Missing

Step-by-step Windows troubleshooting guide.

Audio Device Missing

Step-by-step Windows troubleshooting guide.

Display Adapter Error

Step-by-step Windows troubleshooting guide.

Rollback Driver Windows 11

Step-by-step Windows troubleshooting guide.

Wi-Fi & Network

Wifi Connected No Internet

Step-by-step Windows troubleshooting guide.

Wifi Keeps Disconnecting

Step-by-step Windows troubleshooting guide.

Wifi Option Missing

Step-by-step Windows troubleshooting guide.

Wifi Network Not Showing

Step-by-step Windows troubleshooting guide.

Can’T Connect To This Network

Step-by-step Windows troubleshooting guide.

Ethernet Unidentified Network

Step-by-step Windows troubleshooting guide.

Ethernet Connected No Internet

Step-by-step Windows troubleshooting guide.

Network Reset Not Working

Step-by-step Windows troubleshooting guide.

Dns Server Not Responding

Step-by-step Windows troubleshooting guide.

Default Gateway Not Available

Step-by-step Windows troubleshooting guide.

Limited Internet Access

Step-by-step Windows troubleshooting guide.

Network Adapter Code 10

Step-by-step Windows troubleshooting guide.

Windows 11 Slow Internet

Step-by-step Windows troubleshooting guide.

Vpn Connected No Internet

Step-by-step Windows troubleshooting guide.

Proxy Settings Keep Turning On

Step-by-step Windows troubleshooting guide.

Printer & Scanner

Printer Offline Windows 11

Step-by-step Windows troubleshooting guide.

Printer Driver Unavailable

Step-by-step Windows troubleshooting guide.

Printer Not Printing

Step-by-step Windows troubleshooting guide.

Print Queue Stuck

Step-by-step Windows troubleshooting guide.

Print Spooler Keeps Stopping

Step-by-step Windows troubleshooting guide.

Windows Cannot Connect To Printer

Step-by-step Windows troubleshooting guide.

Printer Not Found On Network

Step-by-step Windows troubleshooting guide.

Usb Printer Not Detected

Step-by-step Windows troubleshooting guide.

Scanner Not Detected

Step-by-step Windows troubleshooting guide.

Scan To Computer Not Working

Step-by-step Windows troubleshooting guide.

Printer Prints Blank Pages Windows

Step-by-step Windows troubleshooting guide.

Printer Keeps Going Offline

Step-by-step Windows troubleshooting guide.

Default Printer Keeps Changing

Step-by-step Windows troubleshooting guide.

Printer Error 0X0000011B

Step-by-step Windows troubleshooting guide.

Printer Error 0X00000709

Step-by-step Windows troubleshooting guide.

Audio & Microphone

No Sound Windows 11

Step-by-step Windows troubleshooting guide.

Audio Device Not Found

Step-by-step Windows troubleshooting guide.

Speakers Not Detected

Step-by-step Windows troubleshooting guide.

Headphones Not Detected

Step-by-step Windows troubleshooting guide.

Microphone Not Working

Step-by-step Windows troubleshooting guide.

Microphone Too Quiet

Step-by-step Windows troubleshooting guide.

Audio Crackling Windows 11

Step-by-step Windows troubleshooting guide.

Bluetooth Audio Stuttering

Step-by-step Windows troubleshooting guide.

Realtek Audio Not Working

Step-by-step Windows troubleshooting guide.

Volume Mixer Not Working

Step-by-step Windows troubleshooting guide.

Audio Service Not Running

Step-by-step Windows troubleshooting guide.

Hdmi Audio Not Working

Step-by-step Windows troubleshooting guide.

Sound Disappears After Sleep

Step-by-step Windows troubleshooting guide.

Wrong Audio Output Selected

Step-by-step Windows troubleshooting guide.

Microphone Access Denied

Step-by-step Windows troubleshooting guide.

Bluetooth & USB

Bluetooth Missing Windows 11

Step-by-step Windows troubleshooting guide.

Bluetooth Keeps Disconnecting

Step-by-step Windows troubleshooting guide.

Bluetooth Device Won’T Pair

Step-by-step Windows troubleshooting guide.

Bluetooth Headphones Connected No Sound

Step-by-step Windows troubleshooting guide.

Usb Device Not Recognized

Step-by-step Windows troubleshooting guide.

Usb Port Not Working

Step-by-step Windows troubleshooting guide.

Usb Drive Not Showing

Step-by-step Windows troubleshooting guide.

External Hard Drive Not Detected

Step-by-step Windows troubleshooting guide.

Usb Keeps Disconnecting

Step-by-step Windows troubleshooting guide.

Usb Selective Suspend Issue

Step-by-step Windows troubleshooting guide.

Phone Not Detected By Windows

Step-by-step Windows troubleshooting guide.

Webcam Not Detected

Step-by-step Windows troubleshooting guide.

Keyboard Usb Not Working

Step-by-step Windows troubleshooting guide.

Mouse Usb Not Working

Step-by-step Windows troubleshooting guide.

Device Descriptor Request Failed

Step-by-step Windows troubleshooting guide.

Display & Graphics

Screen Flickering Windows 11

Step-by-step Windows troubleshooting guide.

Second Monitor Not Detected

Step-by-step Windows troubleshooting guide.

Wrong Screen Resolution

Step-by-step Windows troubleshooting guide.

Display Driver Stopped Responding

Step-by-step Windows troubleshooting guide.

Black Screen After Graphics Driver Update

Step-by-step Windows troubleshooting guide.

Hdr Not Working Windows 11

Step-by-step Windows troubleshooting guide.

Night Light Not Working

Step-by-step Windows troubleshooting guide.

Brightness Slider Missing

Step-by-step Windows troubleshooting guide.

Screen Rotation Not Working

Step-by-step Windows troubleshooting guide.

Monitor No Signal After Sleep

Step-by-step Windows troubleshooting guide.

Gpu Not Showing In Task Manager

Step-by-step Windows troubleshooting guide.

Nvidia Control Panel Missing

Step-by-step Windows troubleshooting guide.

Amd Software Not Opening

Step-by-step Windows troubleshooting guide.

Intel Graphics Driver Problem

Step-by-step Windows troubleshooting guide.

Windows Scaling Blurry Apps

Step-by-step Windows troubleshooting guide.

Accounts & Sign-in

Windows Hello Not Working

Step-by-step Windows troubleshooting guide.

Pin Not Available

Step-by-step Windows troubleshooting guide.

Forgot Windows Pin

Step-by-step Windows troubleshooting guide.

Microsoft Account Sign In Error

Step-by-step Windows troubleshooting guide.

Local Account Password Reset

Step-by-step Windows troubleshooting guide.

User Profile Service Failed Sign In

Step-by-step Windows troubleshooting guide.

Temporary Profile Windows 11

Step-by-step Windows troubleshooting guide.

Locked Out Of Windows Account

Step-by-step Windows troubleshooting guide.

Windows Keeps Asking For Password

Step-by-step Windows troubleshooting guide.

Fingerprint Not Working

Step-by-step Windows troubleshooting guide.

Face Recognition Not Working

Step-by-step Windows troubleshooting guide.

Credential Manager Not Working

Step-by-step Windows troubleshooting guide.

Work Or School Account Error

Step-by-step Windows troubleshooting guide.

Microsoft Account Verification Loop

Step-by-step Windows troubleshooting guide.

Sign In Options Missing

Step-by-step Windows troubleshooting guide.

Security & Defender

Windows Security Not Opening

Step-by-step Windows troubleshooting guide.

Windows Defender Not Turning On

Step-by-step Windows troubleshooting guide.

Real Time Protection Won’T Turn On

Step-by-step Windows troubleshooting guide.

Virus And Threat Protection Missing

Step-by-step Windows troubleshooting guide.

Firewall Not Turning On

Step-by-step Windows troubleshooting guide.

Controlled Folder Access Blocking App

Step-by-step Windows troubleshooting guide.

Smart App Control Blocked App

Step-by-step Windows troubleshooting guide.

Windows Smartscreen Can’T Be Reached

Step-by-step Windows troubleshooting guide.

Potentially Unwanted App Detected

Step-by-step Windows troubleshooting guide.

Malware Popups In Browser

Step-by-step Windows troubleshooting guide.

Browser Redirect Malware Windows

Step-by-step Windows troubleshooting guide.

Ransomware Protection Windows 11

Step-by-step Windows troubleshooting guide.

Defender Scan Stuck

Step-by-step Windows troubleshooting guide.

Defender Update Failed

Step-by-step Windows troubleshooting guide.

Security Center Service Disabled

Step-by-step Windows troubleshooting guide.

Storage & Disk

C Drive Full

Step-by-step Windows troubleshooting guide.

Low Disk Space Windows 11

Step-by-step Windows troubleshooting guide.

Storage Sense Not Working

Step-by-step Windows troubleshooting guide.

Temporary Files Won’T Delete

Step-by-step Windows troubleshooting guide.

Disk Cleanup Missing

Step-by-step Windows troubleshooting guide.

Chkdsk Stuck

Step-by-step Windows troubleshooting guide.

Drive Errors Found Windows

Step-by-step Windows troubleshooting guide.

Ssd Not Detected Windows

Step-by-step Windows troubleshooting guide.

Hard Drive Not Showing

Step-by-step Windows troubleshooting guide.

Disk Management Not Loading

Step-by-step Windows troubleshooting guide.

Partition Not Showing

Step-by-step Windows troubleshooting guide.

Cannot Extend Volume

Step-by-step Windows troubleshooting guide.

Drive Letter Missing

Step-by-step Windows troubleshooting guide.

Bitlocker Drive Locked

Step-by-step Windows troubleshooting guide.

Windows Says Drive Needs Formatting

Step-by-step Windows troubleshooting guide.

Power & Battery

Laptop Battery Not Charging Windows

Step-by-step Windows troubleshooting guide.

Battery Percentage Stuck

Step-by-step Windows troubleshooting guide.

Battery Drains Fast Windows 11

Step-by-step Windows troubleshooting guide.

Sleep Mode Not Working

Step-by-step Windows troubleshooting guide.

Pc Wakes From Sleep By Itself

Step-by-step Windows troubleshooting guide.

Hibernate Not Working

Step-by-step Windows troubleshooting guide.

Fast Startup Causing Problems

Step-by-step Windows troubleshooting guide.

Shutdown Instead Of Sleep

Step-by-step Windows troubleshooting guide.

Power Plan Missing

Step-by-step Windows troubleshooting guide.

Processor Power Management Missing

Step-by-step Windows troubleshooting guide.

Usb Wakes Pc From Sleep

Step-by-step Windows troubleshooting guide.

Screen Won’T Turn Off

Step-by-step Windows troubleshooting guide.

Laptop Shuts Down Unexpectedly

Step-by-step Windows troubleshooting guide.

Critical Battery Notification Missing

Step-by-step Windows troubleshooting guide.

Battery Icon Missing

Step-by-step Windows troubleshooting guide.

Windows Services

Windows Update Service Not Running

Step-by-step Windows troubleshooting guide.

Print Spooler Service Not Running

Step-by-step Windows troubleshooting guide.

Windows Audio Service Not Running

Step-by-step Windows troubleshooting guide.

Bluetooth Support Service Not Running

Step-by-step Windows troubleshooting guide.

Wlan Autoconfig Not Running

Step-by-step Windows troubleshooting guide.

Bits Service Not Running

Step-by-step Windows troubleshooting guide.

Cryptographic Services Error

Step-by-step Windows troubleshooting guide.

Windows Search Service Not Running

Step-by-step Windows troubleshooting guide.

Task Scheduler Service Not Running

Step-by-step Windows troubleshooting guide.

Event Log Service Not Running

Step-by-step Windows troubleshooting guide.

Rpc Server Unavailable

Step-by-step Windows troubleshooting guide.

Service Access Denied

Step-by-step Windows troubleshooting guide.

Service Error 1053

Step-by-step Windows troubleshooting guide.

Service Error 1068

Step-by-step Windows troubleshooting guide.

Service Error 1079

Step-by-step Windows troubleshooting guide.

Office on Windows

Microsoft Office Not Opening

Step-by-step Windows troubleshooting guide.

Word Not Opening

Step-by-step Windows troubleshooting guide.

Excel Not Opening

Step-by-step Windows troubleshooting guide.

Outlook Not Opening

Step-by-step Windows troubleshooting guide.

Outlook Not Sending Email

Step-by-step Windows troubleshooting guide.

Outlook Not Receiving Email

Step-by-step Windows troubleshooting guide.

Outlook Keeps Asking For Password

Step-by-step Windows troubleshooting guide.

Outlook Search Not Working

Step-by-step Windows troubleshooting guide.

Office Activation Failed

Step-by-step Windows troubleshooting guide.

Office Update Failed

Step-by-step Windows troubleshooting guide.

Word Normal Dotm Error

Step-by-step Windows troubleshooting guide.

Excel File Opens Blank

Step-by-step Windows troubleshooting guide.

Powerpoint Not Responding

Step-by-step Windows troubleshooting guide.

Office Repair Not Working

Step-by-step Windows troubleshooting guide.

Microsoft 365 Sign In Problem

Step-by-step Windows troubleshooting guide.

Browser on Windows

Edge Not Opening

Step-by-step Windows troubleshooting guide.

Edge Keeps Crashing

Step-by-step Windows troubleshooting guide.

Edge Slow Windows 11

Step-by-step Windows troubleshooting guide.

Chrome Not Opening Windows 11

Step-by-step Windows troubleshooting guide.

Chrome Keeps Crashing Windows

Step-by-step Windows troubleshooting guide.

Browser Downloads Blocked Windows

Step-by-step Windows troubleshooting guide.

Browser Certificate Error Windows

Step-by-step Windows troubleshooting guide.

Browser Says No Internet But Apps Work

Step-by-step Windows troubleshooting guide.

Edge Sync Not Working

Step-by-step Windows troubleshooting guide.

Chrome High Memory Windows

Step-by-step Windows troubleshooting guide.

Browser Popups Won’T Stop

Step-by-step Windows troubleshooting guide.

Default Browser Keeps Changing

Step-by-step Windows troubleshooting guide.

Websites Not Loading Windows

Step-by-step Windows troubleshooting guide.

Dns Probe Finished No Internet Windows

Step-by-step Windows troubleshooting guide.

Err Connection Reset Windows

Step-by-step Windows troubleshooting guide.

System Repair

Sfc Scannow Found Corrupt Files

Step-by-step Windows troubleshooting guide.

Sfc Could Not Perform Requested Operation

Step-by-step Windows troubleshooting guide.

Dism Error 87

Step-by-step Windows troubleshooting guide.

Dism Source Files Could Not Be Found

Step-by-step Windows troubleshooting guide.

Dism Stuck At 62 Percent

Step-by-step Windows troubleshooting guide.

Windows Image Repair Failed

Step-by-step Windows troubleshooting guide.

System Restore Point Missing

Step-by-step Windows troubleshooting guide.

System Restore Error 0X80070005

Step-by-step Windows troubleshooting guide.

Reset This Pc There Was A Problem

Step-by-step Windows troubleshooting guide.

In Place Repair Windows 11

Step-by-step Windows troubleshooting guide.

Windows Recovery Options Missing

Step-by-step Windows troubleshooting guide.

Winre Reagentc Disabled

Step-by-step Windows troubleshooting guide.

Windows Component Store Corruption

Step-by-step Windows troubleshooting guide.

Event Viewer Application Error

Step-by-step Windows troubleshooting guide.

Reliability Monitor Windows 11

Step-by-step Windows troubleshooting guide.

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