Some issues have simple workarounds, while others are waiting for Microsoft to fix them, and are severe enough for the company to warn that: “We recommend that you do not attempt to manually update using the Update now button or the Media Creation Tool until this issue has been resolved.”
Issues with Microsoft Windows 10 May Update 2004
Microsoft has already acknowledged a minimum of ten new known issues in Windows 10 May 2020 Update and it appears that yet one more bug has made it to the ultimate release. While none of these issues seems too bad, check out the list below to see if you’ll be affected (list taken directly from Microsoft’s website):
Difficulty Connecting to More than One Bluetooth Device
Realtek and Microsoft have found incompatibility issues with certain versions of drivers for Realtek Bluetooth radios and Windows 10, version 2004 (the Windows 10 May 2020 Update). Windows 10 devices with affected Realtek Bluetooth radio drivers could be unable to attach or pair with quite one Bluetooth device at a time after updating.
Errors or Issues During or After Updating Devices with Conexant ISST Audio Drivers
Synaptics and Microsoft have found incompatibility issues with certain versions of drivers for Conexant ISST audio driver and Windows 10, version 2004 (the Windows 10 May 2020 Update). Windows 10 devices with affected Conexant ISST audio driver might receive an error or experience issues while installing the update or after the device has updated. The affected driver are going to be named Conexant ISST Audio or Conexant HDAudio Driver under Sound, video, and game controllers in Device Manager and have file name uci64a96.dll through uci64a231.dll and a file version less than 7.231.3.0.
Errors or Issues During or After Updating Devices with Certain Conexant Audio Drivers
Synaptics and Microsoft have found incompatibility issues with certain versions of drivers for Conexant or Synaptics audio devices and Windows 10, version 2004 (the Windows 10 May 2020 Update). Windows 10 devices with affected Conexant or Synaptics audio drivers might receive a stop error with a blue screen during or after updating to Windows 10, version 2004. The affected driver are getting to be named Conexant HDAudio Driver under Sound, video and game controllers in Device Manager and have versions 8.65.47.53, 8.65.56.51, or 8.66.0.0 through 8.66.89.00 for chdrt64.sys or chdrt32.sys.
Issues Using ImeMode Property to Regulate IME Mode for Individual Text Entry Fields
Some apps utilize the ImeMode property to regulate the IME (Input Method Editor) mode for individual text entry fields to extend typing efficiency. Some IMEs in Windows 10, version 2004 (the May 2020 Update) may need issues using the ImeMode property with certain apps. For example, the input mode won’t switch automatically to Kanji or Hiragana.
Variable Refresh Rate Not Working on Devices with Intel iGPU
Intel and Microsoft have found incompatibility issues when employing a monitor with a variable refresh rate (VRR) plugged into an Intel integrated graphics processing unit (iGPU) display adapter and Windows 10, version 2004 (the Windows 10 May 2020 Update). Enabling VRR on affected devices won’t enable the VRR for many games, especially games using Direct X 9.
Stop Error When Plugging or Unplugging a Thunderbolt dock
Intel and Microsoft have found incompatibility issues when Windows 10, version 2004 (the Windows 10 May 2020 Update) is used with certain settings and a Thunderbolt dock. On affected devices, you would possibly receive a stop error with a blue screen when plugging or unplugging a Thunderbolt dock. Affected Windows 10 devices will have a minimum of one Thunderbolt port, have Kernel DMA Protection enabled and Windows Hypervisor Platform disabled.
Errors or Unexpected Restarts for a few Devices Using Always On, Always Connected
Some devices using the Always On, Always Connected feature may need compatibility issues with Windows 10, version 2004 (the Windows 10 May 2020 Update). Affected devices will have quite one Always On, Always Connected capable network adapter, like the Microsoft Surface Pro 7 and Microsoft Surface Laptop 3, and might receive errors or unexpected shutdown or restart.
No Mouse Input with Apps and Games Using GameInput Redistributable
An incompatibility issue was found with some apps and games using GameInput Redistributable and Windows 10, version 2004 (the Windows 10 May 2020 Update). Affected apps or games might lose mouse input. Note GameInput Redistributable could be bundled with apps and games and could be silently installed during the installation of that app or game.
Issues updating or beginning devices when aksfridge.sys or aksdf.sys is present
An incompatibility issue was found with apps or drivers using certain versions of aksfridge.sys or aksdf.sys and Windows 10, version 2004 (the Windows 10 May 2020 Update). When an affected version of aksfridge.sys or aksdf.sys is present, Windows 10, version 2004 might fail to put in or might fail to start out after updating. Affected file versions are up to 1.8.0.* for aksfridge.sys or up to 1.51.* for aksdf.sys.
Issue with older drivers for Nvidia display adapters (GPU)
Nvidia and Microsoft have found incompatibility issues with certain versions of Nvidia display adaptor drivers and Windows 10, version 2004 (the Windows 10 May 2020 Update). Windows 10 devices with affected Nvidia display driver versions might receive a stop error with a blue screen or other issues during or after installing the update to Windows 10, version 2004. The affected drivers are any version less than 358.00. While many issues can be fixed when you install updated drivers, Microsoft says it’s still working on resolving these bugs and you’ll be able to upgrade to version 2004 without refreshing the drivers. We recommend users to wait for the official update to arrive on their systems and avoid force downloading the flawed Windows 10 May 2020 update.