Although audio problems are very common in systems, most of them tend to have lower sounding than expected or distorted sound. Another known problem is when using VLC media players when users try to increase the volume beyond 100% and screw up the speakers. However, a very unusual problem reported by many users is when:
Windows 10 volume increases automatically
As discussed in the Microsoft forums, the volume sometimes reaches 100% and this could be a very annoying situation.
We cannot state any cause for the same, but as Microsoft works to find the reason, it is improving its audio troubleshooter that could be used before attempting the manual steps.
Try the following solutions one by one:
Solution 1] Uninstall third party music players
To isolate the problem, try to identify whether the problem is with a particular music player application or with the system itself. Try playing the sound with Windows Media Player and if we are facing the same problem then proceed with other solutions. If it is with a certain third party application, uninstall the application. Most computer brands advise against using the VLC player for users.
1] Press Win + R to open the file run window and type the command control panel. Press Enter to open the Control Panel.
2] Select Programs and features and it will show the list of all programs installed on the system.
3] Right click and uninstall the file problematic third party media player.
Solution 2] Run the audio troubleshooter
As mentioned above, the underlying causes of the problem could be many, and the audio troubleshooter doesn't cover them all. But if it works, it's worth a try.
1] Click Start button and then the gear symbol to open the file Configuration menu.
2] Go to Updates and Security >> Troubleshooting.
3] Select Play audio in the options and run the audio troubleshooter.
Restart the system after the process is finished and see if it helps.
Solution 3] Check your audio hardware
A wise decision before attempting manual troubleshooting would be to check if the problem is with the hardware itself. It's easy. Try connecting the speaker or headphones with another system and see if the problem persists. If so, replace the hardware, if not, continue with other solutions.
Solution 4] Windows update
Windows update may be helpful in solving this problem.
1] Click Start button and then in gear symbol to open the file settings page.
2] Go to Updates and security and click Update now.
3] Restart the system and see if it helps solve the problem.
Solution 5] Reset Windows updates
1] Click Start button and then on the gear symbol to open the file settings page.
2] Go to Updates and security and click View update history.
3] Select Uninstall updates.
4] Right click and install last update.
Restart the system and see if it makes a difference.
Solution 6] Update the audio driver
1] Press Win + R to open the Run window and type the command devmgmt.msc. Press Enter to open the file Device administrator.
2] In the audio inputs and outputs section, right click and update all drivers.
We might also consider uninstalling drivers and rebooting the system. If that doesn't help either, the drivers can be downloaded and installed from the manufacturer's website.
I hope this helps!