Security News > 2021 > May > Microsoft fixes new Windows 10 bug corrupting FLAC music files

Microsoft has fixed a known Windows 10 issue that would lead to FLAC encoded music files becoming corrupted when changing their title, artist, or other metadata in File Explorer.

"The FLAC property handler assumed that all FLAC files started with the 4 byte start code fLaC and did not take into account the ID3 frame at the beginning of the file," Microsoft explains.

Microsoft has fixed this Windows 10 known issue in the KB5003214 non-security preview update released today for all supported versions of Windows 10, including Windows 10, version 21H1, Windows 10, version 20H2, and Windows 10, version 2004.

Besides the KB5003214 update designed to prevent the issue from occurring on impacted Windows 10 versions, Microsoft also provides a PowerShell script that can be used to fix previously corrupted FLAC music files.

"After installing KB5000842 or later updates, 5.1 Dolby Digital audio may play containing a high-pitched noise or squeak in certain apps when using certain audio devices and Windows settings," Microsoft explains on the Windows 10 Health Dashboard.

In the past, Microsoft customers have encountered other audio 'difficulties,' with Windows 10 audio problems affecting gamers and Windows 10 system updates causing audio to no longer work.

News URL

https://www.bleepingcomputer.com/news/microsoft/microsoft-fixes-new-windows-10-bug-corrupting-flac-music-files/