You Are Currently Viewing Windows 10 Kb5009543 (21H2, 21H1) Released With Bug Fixes In 2023

Windows 10 KB5009543 (21H2, 21H1) released with bug fixes in 2023

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This yr’s first cumulative replace is now out there for Home windows 10 model 21H2, model 21H1 and later. The patch is out by way of Home windows Replace, however Microsoft has additionally printed direct obtain hyperlinks for Home windows 10 KB5009543 offline installers. The offline installer is especially useful while you’re having points with Home windows Replace.

KB5009543 is a security-only patch and it’ll additionally embrace final month’s non-compulsory cumulative replace. Nonetheless, this patch doesn’t include common enhancements or non-security fixes. That’s as a result of there was no C launch in December because of the vacation season (introduced by Microsoft final month).

Since there was no C launch or non-compulsory cumulative replace launch final month, there’s no new non-security content material rolled into the B launch. For these unaware, a safety replace contains fixes from earlier months in a single package deal. In different phrases, should you didn’t set up December updates, you’ll nonetheless get these fixes in as we speak’s patch.

The final main replace mounted numerous points together with a bug the place variable fonts render incorrectly. One other bug has been mounted the place the 32-bit model of Microsoft Excel may cease engaged on sure units. A bug that shows characters on the fallacious angle has been mounted on this launch.

In the event you’re on Home windows 10 model 21H2 (aka November 2021 Replace), you may be getting Construct 19044.1466. For these on model 21H2, they are going to get Construct 19043.1466 with the identical set of bug fixes. In the event you’re nonetheless on model 20H2, there’s a brand new replace with Construct 19042.1466.

Keep in mind that model 2004 assist has ended so there’ll be no new updates for it. For these on Home windows 11, Microsoft has printed KB5009566 to your system.

In the event you verify for updates as we speak, you’ll see the next replace:

2022-01 Cumulative Replace for Home windows 10 Model 21H2 for x64-based Techniques (KB5009543)


2022-01 Cumulative Replace for Home windows 10 Model 21H1 for x64-based Techniques (KB5009543)

Home windows 10 KB5009543 Direct Obtain Hyperlinks: 64-bit and 32-bit (x86).

Microsoft has mounted a problem the place Japanese Enter Technique Editors (IME) could not work as anticipated on Home windows 10. The textual content you enter may seem out of order and the textual content cursor could have points unexpectedly in apps that use the multibyte character set (MBCS).

Moreover, Home windows 10 Construct 19044.1466 additionally contains the servicing stack updates, which is chargeable for Home windows Updates in your system. In concept, putting in this safety patch must also make Home windows Replace itself dependable in order that your units may also scan and obtain updates.

Microsoft is conscious of some identified points in Home windows 10 replace. As per the changelog, a bug in Home windows Replace may have an effect on the Outlook search. It is a identified concern in updates launched after November and it might block emails from showing in search outcomes for Outlook customers.

It’s not but identified how the search field is unable to look emails on Home windows 11, however Microsoft says it’s actively investigating, and we’ll study extra concerning the state of affairs within the coming days.

Within the meantime, you possibly can disable the Home windows Desktop Search and use Outlook’s built-in search field. If the workaround shouldn’t be working in your case otherwise you’re unable to look emails on Home windows, open the Home windows Registry Editor and go to the next path:


To repair the difficulty, merely create a brand new key and identify it “Home windows Search”. Edit its DWORD worth to “PreventIndexingOutlook” and press Enter 1 within the Worth information field. Now you can shut the Registry Editor, restart the Outlook app or Home windows itself, and a search field will begin crawling emails once more.

Microsoft is at the moment engaged on a repair and we don’t have an ETA for the time being, however given a brand new non-compulsory replace shall be out later this month, it’s doubtless that the upcoming patch will handle this concern.