Windows 10 cumulative update KB4515384 issues and their workarounds


update KB4515384

Many user face issues after installing the cumulative update KB4515384. At first, users reported about Start menu and Windows Desktop Search, then audio, high CPU usage, and recently Intel and Broadcom Wi-Fi adapters issues. Microsoft acknowledged most of the problems and provided some workarounds to mitigate these issues. Below are issues and their workarounds:

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Issues with some Intel and Broadcom Wi-Fi adapters

Microsoft and NEC have found that there are incompatibility problems with Intel Centrino 6205/6235 and Broadcom 802.11 a/c Wi-Fi cards running on Windows 10 1903 version on particular models of NEC devices. Users may see that the task tray icon for networking is showing the no internet icon, and  Network & Internet settings aren’t showing any Wi-Fi networks. So, for now, they have provided a workaround for this issue.

Workaround: The users who are facing this issue after installing the Windows 10 update KB4515384 can mitigate the problem by disabling and then re-enabling the Wi-Fi adapter in Device Manager. Then reboot the device. 

Follow these steps:

  1. Right-click on Start menu and then open the Device Manager
  2. Expand the Network adapters category by double-clicking it
  3. Right-click on your Wi-Fi adapter and then select the Disable device option
  4. After disabling again right-click on your Wi-Fi adapter and then select the Enable device option
  5. Now reboot your system

Now you would able to use your Wi-Fi.

Microsoft and NEC are still working on the issue, and they will resolve this in an upcoming release.

Issues with the Start menu and Windows Desktop Search

A number of users reported Microsoft issues related to the Start menu and Windows Desktop Search.

Recently Microsoft marked this problem as resolved and mentioned that they couldn’t find the issue which the users were reporting. The firm also mentioned that they would continue monitoring the problem, and if any user faces this issue now, they should report it in the Feedback Hub. However, you can follow these steps here for fixing problems in Windows Search.

Having High CPU usage or IME may become unresponsive

Some IME (Input Method Editor) may become unresponsive or having high CPU usage. Affected IMEs include CHT (Chinese Traditional) and CHS (Chinese Simplified) with Changjie/Quick keyboard.

Workaround: Perform the following steps to mitigate this issue:

  1. Click the Start button and type Services in the search box.
  2. Open the Services app
  3. Now look for the Touch Keyboard and Handwriting Panel Service and double click on it and select Properties.
  4. Change the Startup type: to Manual
  5. Click Apply and then OK
  6. IME will work now as the TabletInputService service is set to the default configuration.

Microsoft is working on the problem and will provide an update in an upcoming release for fixing this issue.

Audio issues including missing sound effects and low volume sound

At the request of some audio partners, Microsoft implemented a compatibility change that enabled certain games to query support and render multichannel audio. The company is reverting this change as some games, and some devices are not rendering multichannel audio as expected.

Workaround: To mitigate the issue, open the impacted game settings in and disable multichannel audio; otherwise search in the Windows Control Panel for 3rd party audio device control panels and disable Multichannel audio or Virtual Surround Sound if these options are available.  

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The resolution of the issue is work in progress, and the solution will be available in late September.


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