Printing causes a Blue Screen (BSOD) error "APC_INDEX_MISMATCH for win32kfull.sys" following a Windows 10 update Follow

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Samantha Petro

Symptom

When printing from BarTender (or any other application), Windows crashes and presents a blue screen of death (BSOD), citing the following error: "APC_INDEX_MISMATCH for win32kfull.sys". You may also see this error when opening files as BarTender does check the list of printers during this time.

Environment

  • Any BarTender version and revision
  • Windows 10 or server equivalent running with the March 2021 security update (KB5000802) applied 
  • Seagull or manufacturer's printer drivers

Fix/Answer

The March 2021 Windows security update has been found to cause issues with various printer drivers when attempting to use them to print. This update was pushed to systems automatically as part of a security update package on late March 9th. Reinstalling the drivers will not correct the issue.

If you are experiencing these symptoms, there are two means to fix this issue.

Option 1: Microsoft has released a hotfix (KB5001567) on March 15 to address the issue. It is recommended to install a later hotfix (KB5001649) which addresses this issue and additional graphical printing issues also in the March 2021 Windows security update. This requires a manual update to retrieve the patch. Please do the following:

  • Go to Settings > Update & Security > Windows Update.
  • In the Optional updates available area, locate KB5001649 on the list and click the link to install the update.

Alternatively, you can download the patch from the Windows Update catalog and install it manually from there.

Option 2: Microsoft also suggests the alternate of uninstalling the update:

  1. Open Settings > Update & Security > Windows Update.
  2. Click on ‘View Update History’
  3. Click on ‘Uninstall updates’ link.
  4. Locate the update (KB5000802) and click on ‘Uninstall’.

You can also follow this video to remove the update through the Control Panel: How to find and remove Windows Updates (Video - 0:40)

Once you have removed the update, pause updates for 7 days to ensure the patch does not get installed again before there is a fix.

More information

On March 15th, Microsoft released a special hotfix for this issue. You can read about it here: KB5001567.

A later hotfix (KB5001649) has been released on March 18 which addresses this issue and additional graphical printing issues also encountered in the March 2021 Windows security update.

Other patches were released with the same fix and may be affected. If you cannot find the patch mentioned above, you may have an older version of Windows so the KB number is different. Here is the full list of updates:

For more information and full list of Windows known issues, you can go to Microsoft's Windows release information page here.

8 comments

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Jason Delphus
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This appears to be a wide spread issue, found my first case assisting a customer today.

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Jasper Wen
Moderator
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In Microsoft's KB articles, Microsoft has acknowledged the issue. Microsoft is currently investigating and will provide an update when they have more information. We will continue to update this article as we have more information.

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frank Ross
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This is a MAJOR problem! The Microsoft Update that occurred early this morning on 3/11/21 prohibits ALL printing from any application on my network. I just found your article now, but I knew instantly that this UPDATE was the problem. I uninstalled 'Security Update for Microsoft Windows (KB5000802)'. Now I am waiting for an update-fix to this update. i will continue to follow this article with your updates. Thank you.

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Pete Thane
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I know it is no longer supported but update KB500802 caused a different issue with version 10.1 on Windows 10 PCs

Printing was still possible so no blue screen etc. but any Word Processor objects did not print whilst other fields were unaffected and the same was true of the VB routine for EU FIC allergen labels and in both instances neither did they appear on Print Previews.

Once the update was uninstalled normal printing resumed. 

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Ken Storoschuk
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With Win10 and update kb5000802 3 x computers would restart after launching Bartender 2016 automation - uninstalling update was the fix - waiting for a better update or software patch

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Robert Hetherington
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Thank you for posting this! It saved me a lot of headscratching! 

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Tim Pyne
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Thank you kindly for this. When this happened in March our users were thinking that their computers were failing when they bluescreened. Our plant could not print labels. The uninstall option worked.

 

Glad to see that there is a hotfix now.

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