Fix KB4493472 and KB4493446 booting issues in Windows 7

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Updated onOctober 4, 2023

updated onOctober 4, 2023

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Many users are experiencing booting issues after installingmonthly and security-onlyWindows 7/Windows 8.1 updates launched onApril Patch Tuesday.

However, Microsoft decided to block theseupdatesafterwidespread reports of a major bug affecting Windows users.

In fact, KB4493467, KB4493446,KB4493448, KB4493472, KB4493450 and KB4493451 were the culprits.

The bug primarily affectsWindows 7and Windows 8.1 PCsrunningSophos Central Endpoint Standard/Advanced and Sophos Endpoint Security and Control. Windows Server 2008 R2 and Windows Server 2012 are also affected by this issue.

Sophos recommended its users to avoid theseupdatesuntil the issues have been fixed.

Moving further, theseupdatesare also causingstartup freezing issuesin PCs runningAvast antivirus.We heard initially that this bug is causing some serious issues inWindows 7and Windows 8.1 systems.

All in all, the affected security products are Sophos Enterprise Console, Sophos Central Endpoint,Avastfor Business, some versions of Avira Antivirus, andAvastCloudCare.

However, now we are hearing reports that it might affect Windows 10 users.Microsoft is collaborating with security vendors to resolve these issues.

Steps to fix KB4493472/KB4493446 bugs

Solution 1: Uninstall recent updates

Right now, Microsoft suggests its users that they should uninstall theseupdates.

Solution 2: Uninstall through Safe Mode

Some times users face device freezing issues and they are unable toboot. You canbootto the Safe Mode to remove theupdate.

Here is how you can enter into the Safe Mode:

Solution 3: Remove the affected security products

As mentioned before,the issue exists in the following security products Sophos Enterprise Console, Sophos Central Endpoint,Avastfor Business, some versions of Avira Antivirus, andAvastCloudCare.

You can remove these security products to get rid ofbootissues.

Fix KB4493472 and KB4493446 booting issues in Windows 7#

Steps to fix KB4493472/KB4493446 bugs#

Solution 1: Uninstall recent updates#

Solution 2: Uninstall through Safe Mode#

Solution 3: Remove the affected security products#

Fix KB4493472 and KB4493446 booting issues in Windows 7

Steps to fix KB4493472/KB4493446 bugs

Solution 1: Uninstall recent updates

Solution 2: Uninstall through Safe Mode

Solution 3: Remove the affected security products