Windows 10: Cumulative update 5006667 - Crashes explorer.exe constantly

We are seeing reports of machines with a critical error when installing the patch KB5006667 October 12, 2021— OS Build 18363.1854. Once installed, it seems after Teams is started or setup and running, explorer.exe crashes, restarts and crashes again. This happens over and over with no stopping. Initial troubleshooting shows it seems to be profile related; however, this has not been fully flushed. It affects both desktops and laptops. Any one else seen this issue? Any assistance on this issue would be great! ----------------------------------------------------

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Internet Explorer 11 constantly crashes

Hi Michael,

Thank you for contacting Microsoft Community. I understand that you have an issue with Internet Explorer 11.
I will surely help you to fix this issue.

This issue could have occurred due to these reasons:

• 
  Conflict between third party applications.
  
• 
  Incorrect Internet Explorer settings.
  

Try the steps listed here:



Method 1:

I suggest you to set the computer in a clean boot state and check if it helps.
Setting the system in a clean boot state will help to identify if any third party applications or startup items are causing the issue.

How to troubleshoot a problem by performing a clean boot

http://support.microsoft.com/kb/929135



Warning:

1. Applies to Windows 10.

2. After clean boot troubleshooting steps, refer to the section “Steps to configure Windows to use a Normal startup state” in the provided link to return your computer to Normal startup mode.

Method 2:

If the issue persists, I suggest you to reset Internet Explorer settings and check if it helps.



Change or reset Internet Explorer settings

http://support.microsoft.com/kb/923737



Disclaimer: The Reset Internet Explorer Settings feature might reset security settings or privacy settings that you added to the list of Trusted Sites. The Reset Internet Explorer Settings feature might also reset parental
control settings. We recommend that you note these sites before you use the Reset Internet Explorer Settings feature.



Hope this information helps. Reply to the post with an updated status of the issue so that we can assist you further.

 

Explorer.exe crashing constantly

Hi Sophie,

There are several reasons why you've experienced the issue. If all the troubleshooting steps you found did not help, try disabling the Show recently used folders in Quick access and set Open file Explore to this PC. To do so, follow the steps below:

• Open File Explorer.
• On the View tab, select Options drop-down arrow.
• Choose Change folder and search options.
• On General tab, click the drop-down arrow beside Open File Explorer to and select
  This PC.

We also suggest clearing File Explorer in history.

Update us with the outcome so we can provide further assistance.

 

Windows explore crash when searching

The tenforums link solved this issue for me.

The root cause is a Windows 10 bug where File Explorer crashes when long file names are included in a search result. The steps for the workaround are:

• Open File Explorer
• Click View > Options
• Open the View tab
• Check "Always show icons, never thumbnails"
• Click OK