Microsoft Issues 6th Cumulative Update for Windows 10 Version 2004

Posted on April 10, 2020 by Paul Thurrott in Windows 10 with 5 Comments

Over four months after it completed Windows 10 Version 2004, Microsoft keeps updating the unreleased OS with bug and security fixes.

News of the 6th cumulative update for Windows 10 version 2004 arrives, as always, via Microsoft’s Windows Experience blog, which notes that the update is now available to Windows Insiders in the Slow ring. Many waiting for the software giant to move Windows 10 Version 2004 into the Release Preview ring, which is typically the final major milestone before general availability to the public. But with Patch Tuesday coming up in just a few days, it’s reasonable to wonder if this new release will be pushed back to May now.

While we ponder about that, here’s a list of what Microsoft says is fixed in this CU:

  • An issue that prevents older versions of certain apps from opening by directing users to install the latest version of these apps.
  • An issue that fails to allocate resources during device initialization, which causes certain USB mass storage devices to stop working.
  • An issue that prevents the mute button from working on certain devices with the Your Phone app.
  • An issue that causes a fault in the input-output memory management unit (IOMMU) and a DRIVER_VERIFIER_DMA_VIOLATION (e6) error. This issue occurs after resuming from hibernate on systems that have Kernel Direct Memory Access (DMA) Protection and Dynamic Root of Trust Measurement (DRTM) enabled.

Additionally, the firm says it has updated the Country and Operator Settings Asset (COSA) to increase the coverage for automatic cellular provisioning on PCs with mobile broadband.

Join the discussion!


Don't have a login but want to join the conversation? Become a Thurrott Premium or Basic User to participate

Comments (5)

5 responses to “Microsoft Issues 6th Cumulative Update for Windows 10 Version 2004”

  1. epguy40


    check out this recent BleepingComputer article - Leak shows Windows 10 2004 could come as 'May 2020 Update'

    • Paul Thurrott

      This is actually in keeping with most of these feature updates. It has a version number for one month and then the update name is the next month.
  2. ikjadoon

    IMO, this is great. Let them launch internally, update it with CUs for ~6 months, then ship it publicly. Software quality is on a spectrum, so giving them more breathing room with an "internal" launch is a win-win.

    It's either 6 months of development + 6 months of patching live systems of frustrated users OR 6 months of development + 6 months of patching Insider builds.

    Sure, production always finds bugs that beta builds don't, *but* Insider Builds often had many unfixed bugs that ended up shipping to the public, even though they'd been repeatedly reported.

    Microsoft needs to come to terms with 1) their technical abilities, 2) their enormous codebase, and 3) the "productivity" its users actually want to be doing, instead of fighting bugs. If you put 1, 2, and 3 together, it's hard to argue for anything but annual or even every-two-years operating system updates.

    I feel like that gets lost at Microsoft sometimes: Windows is an *operating* system. It needs to always operate.

  3. kb923689

    My Windows 10 LTSC 2018 is rock solid and unbothered.

  4. epguy40

    hi Paul.

    New cumulative update #7 (KB4550936) as build 19041.207 just released this noon of Tue April 14 - in the Slow ring: