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The Windows 10 May 2020 Update still has a whole bunch of known issues

Today, Microsoft released the Windows 10 May 2020 Update, also known as version 2004. It's actually been in testing with Windows Insiders for 15 months, with the RTM build being released in December, and serviced ever since. There are a few reasons that it's been in testing for so long, but one of them is because Microsoft changed the way it delivers feature updates. Version 1909 was nothing more than an enablement package. For all intents and purposes, it was just a serviced version of 1903.

But version 2004 is rolling in as a full Windows 10 build, and these seem to be coming yearly at this point, since 20H2 is also going to be an enablement package. And since this is such a major update, that means lots of things are changing, and there are still a bunch of known issues, despite being tested and serviced for so long.

Here's the full list of things that are still broken:

  • Difficulty connecting to more than one Bluetooth device
    Windows 10 devices with certain Realtek drivers might be unable to connect to more than one Bluetooth device.
  • Errors or issues during or after updating devices with Conexant ISST audio drivers
    Devices with affected Conexant ISST audio drivers might receive an error or have issues with Windows 10, version 2004.
  • Errors or issues during or after updating devices with certain Conexant audio drivers
    Devices with affected Conexant or Synaptics audio drivers might receive a stop error with a blue screen.
  • Issues using ImeMode property to control IME mode for individual text entry fields
    Some IMEs for certain langauges might have issues using the ImeMode property with certain apps.
  • Variable refresh rate not working as expected on devices with Intel iGPU
    Enabling VRR on affected devices will not enable the VRR for most games, especially games using Direct X 9.
  • Stop error when plugging or unplugging a Thunderbolt dock
    Devices using Thunderbolt docks may receive a stop error when plugging in or unplugging the dock
  • Errors or unexpected restarts for some devices using Always On, Always Connected
    Devices with more than one Always On, Always Connected capable network adapter might have issues.
  • No mouse input with apps and games using GameInput Redistributable
    Affected apps and games using both GameInput Redistributable and Windows 10, version 2004 might lose mouse input.
  • Issues updating or starting up devices when aksfridge.sys or aksdf.sys is present
    Devices with apps or drivers using certain versions of aksfridge.sys or aksdf.sys might have issues updating or starting
  • Issue with older drivers for Nvidia display adapters (GPU)
    You might have issues if you are using an Nvidia display adapter (GPU) and drivers with a version below 358.00.

A lot of these are pretty significant. There are Bluetooth connectivity issues if you've got more than one device connected, such as a mouse and a keyboard. If you use a Thunderbolt dock, that's an issue too. Also, be aware if you've got an older Nvidia GPU, as that could run into some issues as well.

All of these issues list "investigating" as the status, so it's unclear when they will be fixed. For many of these issues, there's a compatibility hold in place for those that will be affected, so those users won't be offered this update.

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