Microsoft and Intel discovered that on some computers with Intel display drivers users might have issues adjusting their display's brightness because of a driver compatibility issue after applying the Windows 10 May 2019 Update.

"After updating to Window 10, version 1903, brightness settings may sometime appear as if changes applied took effect, yet the actual display brightness doesn't change," says Microsoft.

To make sure that user experience is not affected, Microsoft has added a compatibility hold on devices with certain incompatible Intel display drivers from being offered the latest Windows 10 release until the issue is resolved.

Until a resolution for the driver compatibility issue will be offered with an upcoming Windows 10 release, Microsoft advises all users to "not attempt to manually update using the Update now button or the Media Creation Tool until this issue has been resolved."

Intel Display Audio device drivers compatibility hold

In addition, a range of Intel Display Audio device drivers (versions 10.25.0.3 through 10.25.0.8) has also been found to cause problems leading to higher than normal battery drain.

According to a release information support document issued by Redmond:

If you see an intcdaud.sys notification or “What needs your attention” notification when trying to update to Windows 10, version 1903, you have an affected Intel Audio Display device driver installed on your machine.

Microsoft also says that, in order to prevent any issues stemming from incompatible Intel Display Audio device drivers, a compatibility hold has been put in place to block the Windows 10 May 2019 Update from being offered until users have installed updated device drivers.

Affected Windows users are advised to not apply the Windows 10 May 2019 Update manually before updating their system's Intel Display Audio device drivers and the update is being automatically provided via the Windows Update system.

To do so, users can either "wait for newer drivers to be installed automatically through Windows Update or check with the computer manufacturer for the latest device driver software availability and installation procedures."

Microsoft provides the following workaround for impacted systems:

On the "What needs your attention" notification, click the Back button to remain on your current version of Windows 10. (Do not click Confirm as this will proceed with the update and you may experience compatibility issues.) Affected devices will automatically revert to the previous working configuration.

More Windows 10 version 1903 known issues

Owners of computers with Realtek or Qualcomm Bluetooth radios might also experience issues when trying to discover and connect to Bluetooth devices after installing the Windows 10 May 2019 Update because of out-of-date drivers.

According to Microsoft, PCs with Qualcomm wireless network adapters may also suffer from occasional loss of Wi-Fi connectivity after updating to Windows 10 version 1903 due to older network drivers.

In addition, as Redmond states, Windows 10 version 1903 cannot be installed on computers with AMD Ryzen or AMD Ryzen Threadripper processors which have AMD RAID drivers prior to 9.2.0.105 configured in SATA or NVMe RAID mode.

Out-of-date BattlEye anti-cheat software will also prevent Windows users from updating to the latest Windows 10 release with the update not to be offered until the incompatible version of Battleye is removed or updated.