Users of Windows 11 and 10 have reported issues with no sound after waking their computers from Sleep or Hibernate mode, often due to a corrupted audio driver or crashes of the audio service. Troubleshooting steps include:
1. Check for Windows Update.
2. Run the Audio Troubleshooter.
3. Roll back the audio driver.
4. Reinstall the audio driver.
5. Check the status of essential services (Windows Audio, Windows Audio Endpoint Builder, Plug and Play).
6. Update the chipset driver.
7. Restore or reset the PC.
Improper Power Management settings for keyboard and mouse can prevent a computer from waking up from Sleep or Hibernate. Uninstalling and reinstalling the audio driver can resolve sound issues, and checking application settings and the Volume Mixer may also help.