Hello. I have a Lenovo Thinkpad T500 and a microphone. But recording doesn't go. Microphone is detected but doesn't work.

So many reasons. So many prior discussions. Google like this:
"My Skype microphone doesn't work?"
"My windows microphone doesn't work."

There's no reason the T500 matters unless it's new then you have a warranty issue to deal with.

Does it not work across all apps? Maybe a specific app is using the built-in microphone by default? I’ve found sometimes you need to configure which audio input device you want to use on a per-application basis. Most apps that have mic support have their own settings where you configure audio/video tests.

It could be something as simple as needing a refresh on the driver. Do a search on google for driver and include the brand and model of the mic. You'll probably get a lot of extraneous stuff from folks that sell driver software so you'll probably need to sift through it.

Be a part of the DaniWeb community

We're a friendly, industry-focused community of 1.18 million developers, IT pros, digital marketers, and technology enthusiasts learning and sharing knowledge.