Windows 10 Update KB4023057 fails with error 0x80070643


Windows 10 update KB4023057 fails to install with error: 0x80070643

Windows Update - Updates Failed

Updates Failed
There were problems installing some updates, but we'll try again later. If you keep seeing this and want to search the web or contact support for information, this may help:
2018-11 Update for Windows 10 Version 1803 for x64-based Systems (KB4023057) - Error 0x80070643

Remote Desktop - The Local Security Authority cannot be contacted

Remote Desktop (RDP) connection to Windows 7 computer (from Windows 10 RDP client) fails with the following error:

The Local Security Authority cannot be contacted

Remote Desktop Connection
An authentication error has occurred.
The Local Security Authority cannot be contacted.

Remote computer: xx.xx.xx.xx
This could be due to an expired password.
Please update your password if it has expired.
For assistance, contact your administrator or technical support.

Windows 10 - speakers, microphone, and camera stopped working


Speakers, microphone, and the camera suddenly stopped working in all apps on Acer Swift laptop running Windows 10 Home. Devices also not seen by Windows built-in apps and settings, but present in Device Manager.
Reinstalling devices in device manager doesn’t help. Windows Privacy settings is not an issue. Rebooting laptop doesn’t help either.

Windows Audio troubleshooter reports that audio service is not running.

Windows 10 audio troubleshooter


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