Windows Help and Troubleshooting Guides
Step-by-step Windows help for common settings, performance, updates, connectivity, and computer problems.
Windows guides
How to Troubleshoot a Slow Windows ComputerUse a safe, ordered checklist to find common causes of a slow Windows PC before installing cleanup software.
Laptop Won't Turn On: Safe Checks to Try FirstCheck power, display, charging indicators, and connected devices when a laptop appears not to start.
Fix a Printer Showing Offline in WindowsCheck printer power, connection, Windows queue, and default-printer settings when a printer appears offline.
What to Do When Windows Update Is StuckSafely troubleshoot a Windows update that appears stalled without interrupting an active installation.
Windows Blue Screen: Record the Error and Find a Safe Next StepCapture the stop code and recent changes after a Windows blue screen, then use low-risk diagnostic steps.
No Internet on a Windows PC: A Step-by-Step CheckDetermine whether an internet outage affects one Windows PC or the whole network, then check connection settings.
Fix No Sound on a Windows ComputerCheck mute, output device, app volume, cable, and driver status when Windows audio stops working.
Free Up Disk Space in Windows Without Deleting Important FilesUse Windows storage settings to identify large files and safely reclaim disk space.
How to Start Windows in Safe ModeUse Windows Recovery settings to enter Safe Mode for troubleshooting, and return to normal startup afterward.
Show File Extensions in Windows File ExplorerTurn on file-name extensions to distinguish document types and spot misleading file names.
How to Manage Startup Apps in WindowsReview and disable nonessential startup apps in Windows while preserving security and device utilities.
When to Use Windows Network ResetUnderstand what Windows Network Reset changes and what to try before removing network configuration.
How to Find Your IP Address in WindowsFind your local Windows IP address in Settings or with ipconfig, and understand how it differs from a public IP.
How to Flush the DNS Cache in WindowsClear the local Windows DNS resolver cache with ipconfig /flushdns when troubleshooting name-resolution issues.
2.4 GHz vs 5 GHz Wi-Fi: Which Band Should You Use?Compare 2.4 GHz and 5 GHz Wi-Fi by range, interference, device compatibility, and practical placement.
How to Restart a Wi-Fi Router SafelyRestart a home router in the right order and distinguish a reboot from a factory reset.
Ethernet Connected but No Internet: What to CheckTroubleshoot a Windows Ethernet connection with no internet by checking cable, link, IP assignment, and router status.