Reports are coming in that this week's security update for Windows 10 version 1809, KB4494441, may install twice on devices running that particular version of Windows 10.
Microsoft released KB4494441 for Windows 10 version 1809 on Tuesday as part of the company's monthly patch day. The May 2019 update for Windows 10 version 1809 patched a critical security vulnerability in Windows 10, enabled protections against a new class of speculative side-channel vulnerabilities, and enabled Retpoline to optimize protections against the Spectra 2 Variant.
The update included a handful of additional fixes like a patch that fixed error 1309 that Windows threw before when installing certain msi or msp files on a virtual drive.
Administrators who installed the update on machines running that version of Windows 10 may have noticed that they had to do so twice to complete the installation.
Windows Update would list KB4494441 as one of the available updates. Installation of the update requires a restart, and a new check on Windows Update would list the very same update again for installation. The update requires another reboot before it is installed completely on the device.
Microsoft added the issue to the list of known issues on the update's support page on the Microsoft website.
Some customers report that KB4494441 installed twice on their device.
In certain situations, installing an update requires multiple download and restart steps. If two intermediate steps of the installation complete successfully, the View your Update history page will report that installation completed successfully twice.
It appears, at least from the update description, that the update is offered twice in some situations only. In other words, not all customers appear to be affected by this.
Microsoft does not reveal why this particular update would require multiple downloads and restart steps on some devices but not on others.
The company notes that users should install the update twice to complete the installation. It reveals that it plans to improve the update experience "to ensure that the Update history correctly reflects the installation of the latest cumulative update".
Add the double installation of KB4494441 to the -- still growing -- list of Windows 10 version 1809 issues. I did not notice the issue on two test systems that I installed the update on.
Now You: did you install the update? Did it install twice? Why do you think that is the case?
Ghacks is a technology news blog that was founded in 2005 by Martin Brinkmann. It has since then become one of the most popular tech news sites on the Internet with five authors and regular contributions from freelance writers.