After downloading Windows 10 KB4579311 and KB4577671, users have found that it’s causing a wide range of issues, including system crashes and endless installation loop.
On October 13, fondly referred to as Patch Tuesday, Microsoft rolled out the October Patch Tuesday cumulative updates to Windows 10 version 2004, version 1909, version 1903, and other supported versions.
Microsoft shipped two Windows 10 updates – KB4579311 for version 2004 and KB4577671 for version 1909/1903. KB4579311 is a crucial update as it fixes vulnerabilities in the operating system and long-standing network connectivity issues, including the infamous no internet bug.
Source: BleepingComputers