KB5012643

Windows 11 monitor

Microsoft warns that the KB5012643 update is causing problems with lots of Windows 11 apps

It is not long since Microsoft released the KB5012643 update for Windows 11, bringing with it a lengthy list of improvements and security fixes. But, as has been the case with so many Windows updates, it also brought problems.

We have already seen issues with screen flicker in Safe Mode, although Microsoft has taken steps to address this. But now the company has issued a warning that Windows 11 users may experience issues with certain types of apps after installing the KB5012643 update.

Windows 11

Microsoft issues a fix for Windows 11 Safe Mode problems caused by KB5012643 update

When Microsoft released the KB5012643 update for Windows 11, there were complaints from a number of users about screen flicker when booting into Safe Mode.

Microsoft acknowledged the problem, and confirmed suspicions that it was related to Safe Mode with Networking. The company has now addressed the issue, fixing it with a relatively rare KIR (Known Issue Rollback).

Close-up of Windows 11 laptop

KB5012643 update is causing screen flickering for some Windows 11 users

Installing updates for Windows can often be something of a gamble, but this is particularly true when we're talking about the preview versions Microsoft makes available ahead of the monthly Patch Tuesday releases.

The latest problematic patch is the recently released KB5012643 update for Windows 11. Due for a wider release in May, Microsoft has already made a preview version available for those who like to get updated as soon as possible. But some people who have installed the update are reporting problems with flickering screens.

By Sofia Elizabella Wyciślik-Wilson -
Windows 11

Microsoft releases KB5012643 update for Windows 11 to fix app button problems and more

Microsoft has released a big new update for Windows 11 that addresses a number of issues with the operating system. Key changes included in this update include fixes for various problems with video subtitles.

With the KB5012643 update, Microsoft has also introduced a change that means the temperature is now displayed on top of the weather icon on the taskbar. Other features of the update include improvements for servicing the Secure Boot, and a fix for a memory leak.

By Sofia Elizabella Wyciślik-Wilson -
Close-up of Windows 11 laptop

Microsoft releases KB5012643 update for Windows 11 with loads of fixes and improvements

Patch Tuesday may have come and gone, but this does not mean that Microsoft has finished pushing out updates for Windows. The latest to be released is the KB5012643 update for Windows 11 and it is jam-packed with fixes for various issues.

Among the numerous improvements are a fix for an issue that caused extremely slow startup times, as well as addressing a memory leak. The update also improves the Secure Boot and Trusted Platform Module (TPM) components.

By Sofia Elizabella Wyciślik-Wilson -
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