Your speakers should be plugged in to the line-out jack. Many computers have three or more jacks that connect to a sound card or sound processor, including a microphone jack, line-in jack, and line-out jack. Secondly, make sure they are correctly plugged in to the computer (for desktop computers) If not, you might need to replace it with a new one.
If it works properly, there is no problem with the speakers. To check if the speakers have problem, try in on another and see if it works. When a device is not working, the first thing you should check is if the device itself is working properly. Firstly, check if the speakers have problem If you encounter this problem, follow tips here to troubleshoot the problem and find the solution that works for you. The speakers could be damaged, the sound could be muted, the audio driver could be faulty and so forth.
For external speakers not working in Windows 10, there are several reasons causing this problem.
