Applies to: Sophos Home Premium and Free (Windows) version 3.0.0

Some users running Windows 7 who have installed or updated to Sophos Home 3.0.0 may receive the following error: “The exception unknown software exception (0x40000015) occurred in the application at location 0x01344096.”

Note: Please be aware that this error may be slightly different for each user:


This issue is caused by a missing Windows Update (KB2670838).

What to do:

To resolve, please run Windows Update, and do so until no further updates are available.

  • Click the Start Menu
  • In the Search Bar, search for Windows Update
  • Select the Windows Update from the top of the search list
  • Click on the Check for Updates button.  Select any updates that are found to install
  • NOTE: Be sure to check Optional Updates as the required update is optional
  • Restart if prompted and perform these steps again until no further updates are found

We highly recommend you always keep your computer’s operating system up-to-date and current to ensure you are receiving all available security updates from Microsoft.

Note: In some cases, the user will need to install the update manually by using the following Microsoft article:


Source : Official Sophos Brand
Editor by : BEST Antivirus KBS Team

How useful was this post?

Click on a star to rate it!

Average rating / 5. Vote count:

No votes so far! Be the first to rate this post.

(Visited 1 times, 1 visits today)
Discover More help  Windows 3.1.2 - September 10, 2020 (Sophos)