Fix my PC
Pick a symptom to see step-by-step fixes you can try for free, plus test tools that help narrow down the cause. Official methods first, no scare warnings.
Slow, freezing or crashing · Windows errors, updates and reinstall · Internet, Wi-Fi and sharing · Sound, mic and Bluetooth · Keyboard, mouse, monitor, USB and printer · Recovery, security and backup · Checking a new or used PC
Slow, freezing or crashing
Slow PC? A Step-by-Step Checklist
Taskbar Frozen or Start Menu Not Opening? Fixes
How to Check CPU Temperature on Windows
How to Check SSD and Hard Drive Health on Windows
Blue Screen Errors: What Stop Codes Mean and How to Fix Them
Test first: What Are My PC Specs
Windows errors, updates and reinstall
Windows Update Failing? How to Fix Update Errors
Repair Windows with SFC, DISM and Startup Repair
How to Use System Restore in Windows
Create a Windows 11 Install USB and Reset Your PC
Can Your PC Run Windows 11? How to Check and Upgrade
How to Check if Windows Is Activated
How to Update Drivers Safely on Windows
Test first: What Are My PC Specs
Internet, Wi-Fi and sharing
Internet Not Working on Windows? Step-by-Step Fixes
How to See Your Saved Wi-Fi Password
Set Up a Shared Folder on Windows (and Fix Access Errors)
How to Find Your IP Address (Public vs Private IP)
Test first: Internet Speed Test · What Is My IP
Sound, mic and Bluetooth
No Sound on Your PC? How to Fix It
How to Test Your Microphone Online (Free, No Install)
Bluetooth Not Connecting on Windows? Try These Fixes
Test first: Mic, Webcam & Speaker Test
Keyboard, mouse, monitor, USB and printer
Free Keyboard Test: Find Unresponsive Keys, Chattering & Ghosting
How to Test a Monitor for Dead Pixels, Light Bleed and More
How to Check Your Screen Refresh Rate (60Hz, 144Hz, 240Hz)
USB Drive Not Recognized? How to Fix It
Printer Not Printing? How to Fix It on Windows
Test first: Keyboard Tester · Mouse Tester · Monitor Dead Pixel Test · Refresh Rate Test
Recovery, security and backup
How to Recover Deleted Files for Free on Windows
Do You Need a Free Antivirus? Windows Defender Explained
Tech Support Scams: What to Do If a Scammer Got Remote Access
How to Back Up KakaoTalk Chats and Move Them to a New Phone
Checking a new or used PC
New or Used PC/Monitor Checkup: The Right Order to Test Everything
How to Check Your PC Specs Online (CPU, RAM, GPU)
Test first: What Are My PC Specs · Keyboard Tester · Monitor Dead Pixel Test
See all hardware & network tests or every guide.