The latest updates for Windows 10 have caused a problem with the lack of sound on some computers due to the audio driver Intel Smart Sound Technology. The critical update KB4468550 includes a patch for Windows 10, version 1709, 1803, 1809.
After the last round of updates, many users began to report that they had lost sound in Windows 10. Microsoft confirmed that there was an error and released an official fix to fix this problem.
KB4468550 for Windows 10 64-bit, version 1809 (October 2018 Update), 1803 (April 2018 Update) and 1709 (Fall Creators Update) includes the following fix:
This update addresses the issue when, after installing the Intel Smart Sound Technology driver (version 09.21.00.3755) using Windows Update or manually, the sound on the computer may stop working.