how to reconnect a device

I have a Lenovo T15 laptop and I lost the sound. I went to the Device Manager to look at the Sound, video and game controllers but it was not there. So I went to "Hidden Devices" and found it there. I opened the Properties it said to reconnect this device to the computer. How do you reconnect a device?

That's not really a device per say. Stream proxy is a component of Office 365. The device "Intel High Definition DSP" is probably your audio device, so you may need to reinstall the device driver from the computer manufacturer site.