Microsoft has successfully addressed a significant issue affecting Windows 11 24H2 users with devices utilizing Dirac audio technology, as the anticipation builds for the upcoming 25H2 update.
Audio Clarity Restored
Dirac, renowned for its ability to “enhance audio clarity and precision,” unfortunately left many users in silence. Those operating on Windows 11 24H2 with compatible hardware found themselves unable to hear any sound, whether through integrated speakers or Bluetooth headsets and speakers.
The root of the problem was traced back to cridspapo.dll, a crucial component necessary for the functioning of these audio devices. In response, Microsoft implemented a compatibility hold to prevent the rollout of Windows 11 24H2 on affected devices until the issue could be resolved.
New Driver and Update Availability
After a period of diligent development, a new driver has been released via Windows Update, lifting the compatibility hold just in time for the anticipated launch of Windows 11 25H2. While both updates share the same servicing branch, 25H2 introduces new features that were initially included in 24H2 but remained disabled.
Microsoft has been proactive in addressing various flaws within Windows 11 24H2. Issues that arose with the August 2025 Update, such as unexpected User Account Control (UAC) prompts and disrupted NDI streaming, were effectively resolved in the subsequent September 2025 Update. Given that both 25H2 and 24H2 utilize the same servicing branch, administrators can expect a more streamlined experience—barring any unforeseen updates that may introduce new complications.
Commitment to Quality
It is reassuring to witness Microsoft taking steps to rectify issues stemming from its own software. The resolution of the Dirac audio dilemma signifies a step forward for users of Windows 11 24H2. However, Microsoft remains vigilant and unafraid to implement safeguard holds when compatibility issues arise. In April, the company acknowledged problems related to the sprotect.sys driver and confirmed its collaboration with SenseShield Technology to address these concerns.
These troubles manifested as blue or black screen errors, rendering affected devices unresponsive. Five months later, Microsoft continues its investigation into the matter, with impacted devices still blocked from upgrading to Windows 11 24H2.
