Windows
Windows 11 Wi-Fi option is missing
Restore a missing Wi-Fi control by checking airplane mode, adapter state, services and drivers in the right order.
Windows
Microsoft Windows troubleshooting
Windows operating system, drivers, updates and networking.
Published resources
Known symptoms and fixes
Windows
Windows Update error 0x80070005
Resolve the access-denied update error without using unsafe registry cleaners or disabling security permanently.
Networking
DNS server not responding in Windows
Test whether DNS, the router or the wider internet connection is responsible before changing network settings.
Windows
Windows blue screen Critical Process Died
Recover from CRITICAL_PROCESS_DIED by protecting data and testing system files, drivers and storage.
Windows
Windows asks for a BitLocker recovery key
Find the correct recovery key and understand why device encryption entered recovery mode.
Windows
Windows Bluetooth option disappeared
Restore missing Bluetooth controls through radio state, services and the correct device driver.
Windows
Windows USB device is not recognized
Determine whether a USB recognition failure belongs to the device, cable, port, power or driver.
Windows
Windows shows no audio output device
Bring back a missing speaker or headphone output after driver, service or connection changes.
Windows
Windows is stuck on Preparing Automatic Repair
Move from an automatic-repair loop to safe diagnostics without repeatedly forcing power off.
Windows
Windows taskbar is not responding
Recover a frozen Start menu or taskbar and identify whether Explorer, an app or the user profile is responsible.
Windows
Windows black screen appears after sign-in
Distinguish a display-output problem from a stalled desktop shell or graphics driver.
Windows
Windows boot error 0xc000000e
Address boot error 0xc000000e by checking drive detection and recovery options before rebuilding startup data.
Windows
Windows printer remains offline
Return a printer from offline state by checking its connection, queue, port and discovery path.
Windows
External drive does not appear in Windows
Check cable, power, Disk Management and file-system state without formatting valuable data.
Windows
Windows disk usage stays at 100 percent
Identify the process or storage problem behind sustained 100 percent active time.
Windows
Windows computer wakes immediately from sleep
Find the device, timer or network event that wakes a Windows PC seconds after sleep.
Windows
Microsoft Store download is stuck on pending
Restart a Store download by checking account, time, update services and cache.
Windows
Windows Hello face or fingerprint is unavailable
Restore biometric sign-in after camera, sensor, PIN or security changes.
Windows
Ethernet shows Unidentified network in Windows
Recover an Ethernet connection that cannot obtain a valid network identity or address.
Maintenance & Safety
Backup drive clicks or disconnects repeatedly
Protect data when a backup drive shows mechanical noise or unstable connections.
Maintenance & Safety
Static electricity risk before PC repair
Reduce electrostatic-discharge risk before touching memory, storage or circuit boards.