I have a problem on my laptop there's no audio device installed anymore I can't hear anything on my laptop how can I reinstall it?
The driver is probably not installed correctly or Windows has not found one. You should find a driver on the manufacturer's website.
Audio devices do not have to be installed. Either the laptop has speakers or not (it only happens in very few cases).
What you can try is installing the driver. You can get the driver from the website of the laptop manufacturer under the product itself.
Or you can see if you have not previously deactivated the output source in the Windows settings.