Windows Troubleshooting Checklist
A practical Windows troubleshooting checklist that starts with safe checks, separates software from hardware clues, and sends you to the right detailed guide.
Windows Troubleshooting
Most Windows problems are not mysterious. Start with the simplest checks, restart, disk space, and pending updates, before changing advanced settings. These guides explain what a step does, when you need administrator permission, and when to stop.
Start here
Choose the closest symptom first. If you are not sure which guide fits, use the PC troubleshooting wizard to narrow the problem before changing settings.
Published topics in this category
- Windows 11 (4 guides), Problems that show up after upgrading to Windows 11 or while using it day to day.
- Windows Settings (7 guides), When Settings will not open, options are missing, or a change does not stick.
- Windows Update (2 guides), Updates that stall, fail, or keep checking without finishing.
- Startup & Boot (6 guides), PCs that hang on the logo, restart in a loop, or take a long time to reach the desktop.
- Performance (2 guides), Slow PCs, high CPU or memory use, and apps that feel delayed.
Other topics in this category are planned, but Practical PC only links topic hubs after a dedicated guide exists.
Guides
How to Fix a Laptop That Is Not Charging
When the charger is plugged in but Windows still runs on battery or the LED stays off, check the brick, port, and power limits, software cannot prove a dead battery by itself.
How to Fix a Microphone That Is Not Working in Windows
When apps hear silence, pick the correct input device and allow microphone access in Windows privacy settings before you replace the headset.
How to Fix a Webcam That Is Not Working in Windows
When the camera is black, in use, or missing, allow Camera privacy and close the app that grabbed it, same idea as the microphone guide, different device.
How to Fix a Windows 11 Automatic Repair Loop
When Windows 11 never reaches the desktop and keeps preparing Automatic Repair, use recovery options in order, without unofficial "boot repair" discs from ads.
How to Fix a Windows 11 Black Screen After Login
When you can enter your PIN but then see a black desktop, restart Explorer and check the display, this is not the same as a PC that never shows a sign-in screen.
How to Fix a Windows Update That Failed to Install
When Windows 11 downloads an update then reports install failed or rolls back, free space and retry from Settings, this is not "Checking for updates" stuck forever.
How to Fix Headphones That Are Not Detected in Windows
When Windows will not list headphones or sound still plays from speakers, pick the playback device and finish Bluetooth pairing, this is output, not the microphone guide.
How to Fix the Windows 11 Clipboard When It Is Not Working
When copy and paste do nothing, Win+V is empty, or history will not save, restart Clipboard and check the clipboard setting, without a "clipboard booster."
How to Fix the Windows 11 Start Menu When It Won't Open
When the Start button does nothing, the menu is blank, or it opens then closes, restart Explorer and repair Start, without replacing it with unofficial Start-menu clones from ads.
How to Fix Windows 11 Apps That Won't Open
When a Windows 11 app does nothing, flashes, or closes immediately, sort Store apps from desktop programs and try safe repairs before reinstalling Windows.
How to Fix Windows 11 High Memory Usage
See what "memory" means in Task Manager, which Windows processes are normal, and when high RAM use is a leak, a heavy app, or a PC that needs more RAM.
How to Fix Windows 11 Settings When It Won't Open
When Win+I does nothing, Settings flashes and closes, or the window never appears, restart Explorer and open Settings another way before repairing Windows.
How to Fix Windows 11 When It Is Running Slow
Find out why a Windows 11 PC feels slow and follow safe steps to free memory, reduce startup load, and check whether the drive or hardware is the real limit.
How to Fix Windows 11 When It Is Stuck on Restarting
When Restart hangs on a spinning circle or "Restarting," wait out updates, then recover with a clean power cycle, this is not the same as a PC that will not shut down.
How to Fix Windows 11 When It Takes a Long Time to Boot
When the logo, spinning dots, or "Welcome" screen last for minutes, trim startup apps and check the disk, this is not the same problem as a slow desktop after you have already logged in.
How to Fix Windows 11 When It Won't Shut Down
When Shut down leaves the PC on, hangs on "Shutting down," or comes back after you thought it was off, finish updates and stop blocking programs, without a shutdown "optimizer."
How to Fix Windows Search When It Is Not Working
When Start search finds nothing, hangs on "Searching," or never indexes files, rebuild the index and restart Search, without unofficial "search repair" downloads.
How to Fix Windows Update Stuck Checking for Updates
What to do when Windows 11 sits on "Checking for updates" forever, including safe waits, a restart, and the built-in troubleshooter, without unofficial update tools.
How to Use Safe Mode in Windows 11 (and When It Helps)
Start Windows 11 with a minimal set of drivers and programs so you can tell a startup-app problem from a deeper Windows or disk failure.
Windows 11 System Restore Explained (and How to Use It)
What System Restore actually rolls back, how to create or use a restore point, and when it will not help, without unofficial restore-point "repair" tools.
Related tools
- PC Troubleshooting Wizard, Answer a few questions about what is going wrong. The wizard points you to the safest matching guide on this site.
- Windows Error Code Lookup, Look up a Windows update code or blue-screen name and see what it usually means, plus safe next steps.
- BSOD Stop Code Lookup, Look up a Windows blue-screen stop code and see likely causes, safe first steps, and when hardware may be involved.