High CPU usage (100%) with nothing open on Windows 11: how to fix it
Your CPU sits at 100% even with no apps open, the fan roars and everything freezes? Here’s how to identify the process and fix each case, step by step.
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Step-by-step fixes for Windows 11 and 10: updates, blue screens, slowness, networking, printers, activation and settings.
Screen flickering on Windows 11: how to fix it
Your PC or laptop screen keeps flickering or flashing? Here’s the Task Manager test that reveals the cause and how to fix it: graphics driver, refresh rate, brightness and cable.
100% disk usage on Windows 11 (Task Manager): how to fix it
Task Manager shows the disk at 100% and the PC keeps freezing? Here’s how to find the process responsible and fix it: SysMain, search, antivirus, updates and hard drives.
Windows 11 won’t boot (black screen or error 0xc000000e): how to fix it
The PC turns on but Windows won’t load? Black screen, error 0xc000000e or an Automatic Repair loop? Here’s how to get it booting again without losing your files.
Laptop webcam not working (Windows 11, Teams and Meet): how to fix it
Your laptop camera won’t turn on, shows a black image or error 0xA00F4244? Here’s the fix: the privacy shutter and camera key, privacy settings, driver and Teams or Meet permissions.
Microphone not working on Windows 11 (Teams, Meet, Zoom): how to fix it
Nobody can hear you in meetings? Here’s how to allow the microphone in Windows privacy settings, choose the right device and fix it in Teams, Meet, Zoom and Discord.
Error 0x8000FFFF (catastrophic failure) on Windows: how to fix it
Error 0x8000FFFF shows up in Windows Update, the Microsoft Store, System Restore or when copying files. Here’s what it means in each case and how to fix it.
Error 0x80004005 (unspecified error): how to fix it
Error 0x80004005 shows up when opening network folders, extracting compressed files or updating Windows. Here’s the cause in each situation and how to fix it.
No sound on Windows 11: how to fix it
Sound stopped working on your PC or laptop, sometimes right after an update? Here’s what to check first and how to fix it step by step — from the output device to the driver.
Bluetooth not showing up on Windows 11: how to fix it
Did the Bluetooth button disappear, or isn’t it even in Device Manager? Here’s how to re-enable the adapter, the service and the driver, step by step.
Wi-Fi not showing up on Windows 11: how to fix it
Did the Wi-Fi option disappear from your laptop? Or does Wi-Fi work but your network isn’t listed? Here’s how to tell which case you have and fix it step by step.
Windows Update error: how to fix 0x800f081f, 0x80072efe and more
Is Windows Update failing with an error code? Here’s what the most common codes mean and the steps that fix most of them — without reinstalling from scratch.