Microsoft pushes emergency fix for Windows 10 KB5004945 printing issues

Windows 10

Microsoft has produced an crisis resolve for printing difficulties affecting Zebra and Dymo receipt or label printers prompted by modifications in the not too long ago released KB5003690, KB5004760, and KB5004945 updates.

This week, Microsoft released the out-of-band KB5004760 and KB5004945 security update to repair the actively exploited PrintNightmare vulnerability.

Right after setting up the update, Home windows users found that they could no more time print to their Zebra and Dymo label and receipt printers linked via USB.

As most men and women reported the troubles soon after putting in the out-of-band updates, people assumed that the difficulty was similar to the patch for the PrintNightmare vulnerability.

Even so, Microsoft declared now that the concerns are not “not linked to CVE-2021-34527 or CVE-2021-1675,” and are brought about by variations introduced in the June 2021 cumulative update preview.

Mounted making use of Recognised Challenge Rollback function

Thursday night time, Microsoft launched an crisis repair for Windows 10 2004, Windows 10 20H2, and Windows 10 21H1 to solve these concerns.

“Immediately after installing KB5003690 or afterwards updates (which include out of band updates, KB5004760 and KB5004945), you could have issues printing to particular printers. Most impacted printers are receipt or label printers that join via USB,” Microsoft mentioned in a new issue posted to the Home windows 10 wellness dashboard.

This correct is remaining rolled out as a result of Microsoft’s Known Situation Rollback (KIR) attribute, which distributes fixes for regarded concerns via Home windows Update and must access most folks in just 24 several hours.

“This issue is settled using Recognised Concern Rollback (KIR). Be sure to take note that it could acquire up to 24 several hours for the resolution to propagate instantly to customer devices and non-managed business enterprise products. Restarting your Home windows gadget could possibly assistance the resolution implement to your unit more quickly,” points out Microsoft.

“For enterprise-managed devices that have put in an impacted update and encountered this problem, it can be settled by setting up and configuring a special Team CoverageNote Devices want to be restarted immediately after configuring the particular Team Coverage. For help, remember to see How to use Team Coverage to deploy a Acknowledged Situation Rollback. For normal facts on applying Group Procedures, see Group Coverage Overview.”

When Microsoft releases new cumulative updates to deal with a bug, the new variations might trigger other concerns in Windows 10. Applying diagnostics and telemetry shared by Windows 10 desktops, Microsoft can detect when issues crop up and figure out how huge an affect they have.

If the concerns are influencing a large population of Windows 10 buyers, Microsoft will difficulty a Recognised Problem Rollback (KIR) via Home windows Update that disables the adjust leading to the challenges, as shown below.

Illustration of how Known Issue Rollout fixes are delivered
Illustration of how Identified Issue Rollout fixes are delivered

Even though these fixes are distributed by using Home windows Update, they are not delivered as an actual update. Consequently, there is no simple way for Windows 10 buyers to know when a Recognized Concern Rollout take care of is put in devoid of examining the Registry.

To determine if this KIR is mounted on your pc, you can open the Registry Editor and test if the pursuing important exists. If it does, then the KIR has been set up on your computer system.


If you do not see the KIR in the Registry, do not stress. It simply just usually means it has not been pushed down to your pc nevertheless.

Microsoft claims the rollout is predicted to be full in just 24 hrs and that restarting the laptop or computer may velocity up this system.

Ellen C. McGowan

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