Windows
Understand the error in context, from simple checks to system repair.
Windows Update error 0x80070005
During Windows Update, 0x80070005 means access is denied to a resource the update process needs. The restriction may involve system files, folders or permissions, rather than just the account you are signed in with.
View solutionBluetooth disappeared in Windows
Windows no longer offers Bluetooth or cannot turn it on. First check whether the adapter is still detected. A visible Bluetooth adapter that cannot connect to an accessory needs a different troubleshooting path.
View solutionBluetooth won’t connect in Windows
Bluetooth is available, but Windows cannot connect to an accessory. Distinguish a device that never enters pairing mode from a saved device that stopped connecting before changing drivers.
View solutionBluetooth connected but no sound
A connected accessory is not necessarily the audio output Windows is using. Check the selected output and volume first. This guide is not for pairing that never completes.
View solutionNo sound in Windows
Audio playback is silent in Windows. Check the output and its controls before changing drivers. Use the dedicated guide if only Bluetooth headphones or microphone input is affected.
View solutionMicrophone not working in Windows
The microphone does not capture your voice, or an app cannot receive it. Start with physical mute and input selection, then distinguish device detection from app permissions.
View solutionWi-Fi option missing in Windows
Windows does not show the option to enable Wi-Fi. First check whether the wireless adapter is present and enabled. Restarting the router alone does not restore an adapter Windows cannot detect.
View solutionWindows doesn’t detect a second monitor
The main display works, but the second display is missing or blank. Distinguish a detected display using the wrong mode from a connection Windows cannot recognize. This is not a PC with no image from power-on.
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