Windows 10 version 2004 is here, and it has lots of issues
Microsoft released Windows 10 version 2004, also known as the May 2020 Update. The new feature update for Microsoft's Windows operating system is available for systems running Windows 10 version 1903 or 1909 only via Windows Update, and only if users click on the "check for updates" button to search for the new version manually.
Even then, it may not be offered to the system at that point in time because of issues identified on the system and because Microsoft is rolling it out over time. In other words: the update is only offered if Microsoft's algorithm concludes that the device is ready for the update and if your device has been picked by Microsoft.
Microsoft published a long list of known issues that have not been resolved yet on the official Windows 10 release information page. A total of ten issues are listed on the page currently; many block the new feature upgrade from being offered to devices.
- Difficulty connecting to more than one Bluetooth device -- Affects Windows 10 devices with certain Realtek Bluetooth radios. (update hold for affected devices)
- Errors or issues during or after updating devices with Conexant ISST audio drivers -- Affects Windows 10 devices with Conexant ISST audio drivers (Conexant ISST Audio or Conexant HDAudio Driver) with file names file name uci64a96.dll through uci64a231.dll and file versions lower than 184.108.40.206. (update hold for affected devices)
- Errors or issues during or after updating devices with certain Conexant audio drivers -- Devices with certain drivers may receive stop errors or bluescreens. Affected driver is Conexant HDAudio Driver, versions 220.127.116.11,Â 18.104.22.168, or 22.214.171.124 through 8.66.89.00 for chdrt64.sys or chdrt32.sys.
- Issues using ImeMode property to control IME mode for individual text entry fields -- Issues with some applications that use the ImeMode property, e.g. automatic switching between input methods does not work.
- Variable refresh rate not working as expected on devices with Intel iGPU -- Monitors with variable refresh rates (VRR) on systems with Intel integrated graphics processing unit display adapters may not work correctly. Microsoft notes that enabling VRR on affected devices won't enable the feature for most games (especially when using DirectX 9.
- Stop error when plugging or unplugging a Thunderbolt dock -- Stop error or bluescreen when plugging or unplugging a Thunderbolt dock. Affected devices have at least one Thunderbolt dock, Kernel DMA protection enabled and Windows Hypervisor Platform disabled. (update hold for affected devices)
- Errors or unexpected restarts for some devices using Always On, Always Connected -- Devices that support the Always On, Always Connected feature may receive errors or unexpected shutdowns or restarts. Devices with more than one "Always On, Always Connected" capable network adapters are affected. (update hold for affected devices)
- No mouse input with apps and games using GameInput Redistributable -- Incompatibilities with some games using GameInput Redistributable that causes them to lose mouse input. (update hold for affected devices)
- Issues updating or starting up devices when aksfridge.sys or aksdf.sys is present -- Devices with aksfridge.sys or aksdf.sys drivers may cause the Windows 10 version 2004 upgrade to fail to install, or may prevent the system from starting after updating. (update hold for affected devices)
- Issue with older drivers for Nvidia display adapters (GPU) -- Affected devices with Nvidia graphics cards may receive stop errors or bluescreens. Affects devices with driver version lower than 358.00. (update hold for affected devices)
Microsoft blocks updates on certain devices automatically but not all issues that Microsoft confirmed officially have an update block in place. It is a good idea to go through the list before you start to upgrade your devices.
See our guide on blocking the May 2020 Update for Windows 10 if you want to make sure that you don't receive the update.
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