Windows 10: Latest Windows 11 cumulative update KB5040442 has stopped MAPI from working

Our software currently uses MAPI to connect to Outlook 32 bit, however we are having issues whereby when a customer updates their Windows with the KB5040442 cumulative update, MAPI fails to work. I have seen other softwares online mention the same issue. Does anybody have a workaround for this or is this something Microsoft will be updating with a new patch?

:)

 

Trouble with latest cumulative windows July 2024 update KB5040442 on Windows 11 Pro

Hi,

I have an issue with kb5040442 windows update. It appears to install OK, machine restarts, no post errors, boots into windows, I enter my PIN, it opens a session and I get a swirling circle as if its tidying up the install then the screen goes black except for the cursor which moves with the mouse and is not frozen. I managed to uninstall the update using CTRL-ALT-DEL, getting into task manager and creating an administrator task wusa /uninstall /kb:5040442 all the time the rest of the desktop was black only the task manager window was visible and operable. After restarting my pc boots into windows no problem and desktop is visible and functions normally.

There were a number of .net updates that were installed at the same time as kb5040442 but they are not the issue because the only update I uninstalled was kb5040442. This is the first time I have experienced this with a cumulative Windows 11 update was wondering if anybody else has the same issue? I did do a sfc /scannow scan after restart it showed no corrupted files

 

Trouble with latest cumulative windows July 2024 update KB5040442 on Windows 11 Pro

Hi, good day! I'm John and I'll be happy to assist you today. I know this has been difficult for you, Rest assured, I'm going to do my best to help you.

I recommend reporting the issue through the Feedback Hub app to notify Microsoft.

https://support.microsoft.com/en-us/windows/sen...

Once uninstalled, I recommend using the “Show or Hide Updates” troubleshooter to hide the problematic update. Windows Update won’t install hidden updates. Run the troubleshooter then please try to hide the Cumulative Update (KB5040442) that will show in the list. You may try restarting your pc if it helps.

http://download.microsoft.com/download/F/2/2/F2...

Kindly let me know if this helps or if you have any further concerns.

Kind regards,



Independent Advisor

 

Trouble with latest cumulative windows July 2024 update KB5040442 on Windows 11 Pro

I installed KB5040442 last Monday 8/7/2024, after installation my network connection slowed down completely, from booting to opening any app, the PC needs almost 45sec for each operation/pop-up of screens
after uninstall of KB5040442 the PC runs normal, 1sec for booting, open internet, office etc
who can help?
(my PC is running on LAN, with my tablet working on wifi I have no problem)