Microsoft has released an emergency fix for printing issues affecting Zebra and Dymo printers. The fix is being rolled out through Microsoft’s Known Issue Rollback (KIR) feature. Microsoft says the fix is expected to be complete within 24 hours and that restarting the computer may speed up this process. The fixes are distributed via Windows Update, they are not delivered as an actual update, so there is no easy way for Windows 10 users to know when a fix is installed without checking the Registry.
Source: https://www.bleepingcomputer.com/news/microsoft/microsoft-pushes-emergency-fix-for-windows-10-kb5004945-printing-issues/