Windows 10 is no sound again?

This morning everything went normal, Windows gave me a message that had to be restarted as part of an Intel update of the laptop once. After the restart, a small red and white cross symbol appeared below the sound icon. Since then, the laptop is no sound again. Also, there's the audio service is not running and a right click on the audio icon gives me three options. The first one is "Speaker Setup (unknown)" which then has sounds and sound problems. The sound problems option starts the windows problem solving, which is unsuccessful with sounds i can only see that neither input nor output devices are installed on which sound can be played. Drivers are all up to date and only after the reboot this morning has it stopped working. Reboots have so far brought nothing and driver updates, de-reactivation and reactivation as little. The laptop is a RoG model from Asus.

Go to Apps and reset the update to the previous version. Alternatively, you can search for system restore times using Help. Probably one was created.

I know only one reason: The white cross on a red background is shown when in "Control Panel> Sound> Playback", the speaker output is disabled. See picture example.
Should that be the case with you, activate it with a right click, as shown here.

Unfortunately, no audio devices are installed which I can activate or there are none installed.

I did it, nothing has changed and I would like to use the system recovery option as a last resort.

Try the following: Put a right-click in the empty window "Playback" and activate, as shown in the example picture, "Disable Display Devices".
When the playback devices appear, activate the speaker.

I already have it, nothing is displayed

From whom is the sound, from Intel or Realtek?
Look in the device manager.- Also if there's an unusual display in the audio output speaker.

From Realtek at the device manager, everything is as far as I can judge completely normal all devices run normally no exclamation marks / question mark icons all drivers are current and work (according to windows) objection freely. Uninstalled the realtek driver and downloaded from the Asus website the driver specified for my laptop and reinstalled it has not changed.

I mean the "recovery time". Not all your work is gone, but the system is reset to the last time it was possible. I have had good experiences with it. I create something like this once a month. But often Win does that automatically and surprisingly well.

Alright, if I do not get any further, I'll try that for sure

Then, as recommended by "Mauritan", I would do a system recovery.