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Outlook Can’t Open Attachments

Have seen this on a couple computers. Usually people running Outlook 2010. After a Windows/Office update they can’t open attachments. In Outlook it will specify something like attachment is unsafe. One of them was .docx. Microsoft does not want you to open their own file format for Word in Outlook!! I understand why they are providing better security but if you can’t open attachments in Outlook that you normally would it gives major problems.

The culprit is an Outlook Security update (KB3203467) for Outlook 2010 or (KB3191932) for Outlook 2016. This update came from June 13th 2017.

Caused by KB3191898 Outlook 2007
KB3203467 Outlook 2010
KB3191938 Outlook 2013
KB3191932 Outlook 2016.

Here is a site that describes others having this issue. Likely will be fixed in next round of updates I hope.

To fix the problem is to uninstall the update from Control Panel-Program and Features-Show updates and search for it. Once uninstalled you will need to hide this update so that it will not come back. For Windows 10 you will need a utility to hide the update.

Addendum

Here is an article from Windows Secrets that also talks about the issue and currently no fix.

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