KB5016622 Windows 10 1607 Security Update Aug 2022

August 2022 Security update is now available for all Windows 10 versions and Windows 11. Windows 10 1607 users may download and install KB5016622 to upgrade their OS Builds to 14393.5291. 

As usual, there are four channels from which you may download this patch update on your computer. In addition to improving the security of your Windows operating system, this patch also addresses an issue with troubleshooting tools. 

Patch Tuesday - KB5016622

KB5016622 Changelog

The key changes on this security update are as follows – 

  • Works upon and rectifies an issue that prevents in-built troubleshooters from starting. 
  • Resolves an issue that prevents the Key Distribution Center (KDC) Proxy from properly receiving Kerberos tickets. The tickets were used to verify Key Trust Windows Hello for Business credentials.
  • Addresses the “KDC_ERR_TGT_REVOKED” error which appears due to some issues incorrectly configuring the KDC code.
  • Loken Security Authority Server Service (LSASS) was known to leak tokens due to internal glitches. This problem first appeared on devices that have installed Windows updates dated 14th June 2022 or later. As per Microsoft, this bug appears when the device performs a specific form of service for users (S4U) in a non-Trusted Computing Base (TCB) Windows service that runs as Network Service. The tech giant has worked on this issue and resolved it as well.
  • Microsoft enforces a hardening change on printers and scanners. Because of this, printers and scanners now require smart cards for authentication to have firmware that complies with section 3.2.1 of RFC 4556. In case they still do not comply, Active Directory domain controllers will not authenticate them.

Note: Mitigations that allowed non-compliant devices to authenticate will not exist after August 9, 2022. 

Known Issues on this security patch

Microsoft is not aware of any known issues with this cumulative update for Windows 10 1607

How do I install KB5016622 on Windows 10 version 1607?

Usually, this update downloads automatically (if not restricted manually). When the download completes, the system prompt you to restart your PC. Doing so will install this patch update on your computer.

In case you haven’t yet received this update, you may visit the Windows Update section and hit Check for Updates. 

Settings (Win + I) > Update & Security > Windows Update > Check for updates

If you have restricted the automatic updates on your Windows 10 PC, you may download this cumulative update by visiting Microsoft’s Update Catalog. Pick the update that best matches your system architecture and hit the Download button. 

Release Note