Cumulative updates - April 14 2020

This is a summary of the cumulative updates released on April 14th 2020.

  1. Windows 10 1903 and 1909 - KB4549951, Build No. 18362.778 and 18363.778
  2. Windows 10 1809- KB4549949, OS build 17763.1058*

Direct Download links

  • KB4549951 32-bit update can be downloaded using this link and 64-bit can be downloaded from this.
  • KB4549949 32-bit link is here and the 64-bit link is here.

Servicing Stack Updates

It is recommended to install Servicing stack updates before installing the cumulative updates. This update makes quality improvements to the servicing stack, which is the component that installs Windows updates. Servicing stack updates (SSU) makes sure that you have a robust and reliable servicing stack so that your devices can receive and install Microsoft updates

  • For Windows 10 1903/1909, use this link for 32-bit and this link for 64-bit download(KB4552152)
  • For Windows 10 1809, use this link for 32-bit and this link for 64-bit download.(KB4549947)

Known Issues

Symptom Workaround
After installing KB4493509, devices with some Asian language packs installed may receive the error, "0x800f0982 - PSFX_E_MATCHING_COMPONENT_NOT_FOUND."
  1. Uninstall and reinstall any recently added language packs. For instructions, see Manage the input and display language settings in Windows 10.
  2. Select Check for Updates and install the April 2019 Cumulative Update. For instructions, see Update Windows 10.

Note If reinstalling the language pack does not mitigate the issue, reset your PC as follows:

  1. Go to the Settings app > Recovery.
  2. Select Get Started under the Reset this PC recovery option.
  3. Select Keep my Files.

Microsoft is working on a resolution and will provide an update in an upcoming release.

There are no known issues for KB4549951. 

Known issues in this update

Symptom Workaround
We have seen social media reports related to KB4549951 that mention Bluetooth, a stop error with a blue screen, and other related issues.

To date, we have not seen these issues reflected in telemetry, support data, or customer feedback channels. We continuously investigate all customer feedback and are closely monitoring this situation.

Note If you experience any issues, we'd like to know. Please provide feedback using the keyboard shortcut Windows + F or go to the Start menu and select Feedback Hub so that we can investigate.

Windows 10 update history

Windows 10 release dashboard

Windows 10 message center

Follow @WindowsUpdate to find out when new content is published to the release information dashboard.

*Revised end of service date for Windows 10, version 1809


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I've had no problems with 1909 updates.

Thank you all for participating in this discussion. This month's updates information is posted in the link below:


Windows Insider MVP 2018-current and Moderator
Dell Inspiron 5590 - i5 10210U/12GB DDR4/ 4GB Nvidia MX230/ 512GB nvme

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Discussion Info

Last updated October 5, 2020 Views 31,164 Applies to: