<div>
Disable add-ins and check trust center settings for attachment handling and downloading attachments. <br />
<br />
It is out of support and gets very few security updates so you have to prevent downloads and image display manually.
</div>


Disable add-ins and check trust center settings for attachment handling and downloading attachments.

It is out of support and gets very few security updates so you have to prevent downloads and image display manually.

<div>
That sounds like part of an add-in. Make sure you have it set as trusted.
</div>


That sounds like part of an add-in. Make sure you have it set as trusted.

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Which add in I need to trust and how
</div>


<div>
Disable all add-ins and the enable one by one until you find the issue
</div>


Disable all add-ins and the enable one by one until you find the issue

<div>
Which add you n Brian is referring to as trusted?
</div>


Which add you n Brian is referring to as trusted?

pramod1

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<blockquote>
Which add you n Brian is referring to as trusted?
</blockquote>
<br />
There is not enough information to say for sure. So disable them all or first try Outlook in safe mode (Start, Run, outlook /safe).
</div>


> Which add you n Brian is referring to as trusted?


There is not enough information to say for sure. So disable them all or first try Outlook in safe mode (Start, Run, outlook /safe).

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Thanks and I was happy to help.
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<div class="content wysiwyg-content">
lately lot of users are getting this pop up message<br />
<br />
when they open outlook 2010<br />
<a href="https://filedb.experts-exchange.com/incoming/2018/11_w46/1401617/Capture.PNG" target="_blank" class="file-inline" title="outlook error (396 KB)"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path d="M67.508 468.467c-58.005-58.013-58.016-151.92 0-209.943l225.011-225.04c44.643-44.645 117.279-44.645 161.92 0 44.743 44.749 44.753 117.186 0 161.944l-189.465 189.49c-31.41 31.413-82.518 31.412-113.926.001-31.479-31.482-31.49-82.453 0-113.944L311.51 110.491c4.687-4.687 12.286-4.687 16.972 0l16.967 16.971c4.685 4.686 4.685 12.283 0 16.969L184.983 304.917c-12.724 12.724-12.73 33.328 0 46.058 12.696 12.697 33.356 12.699 46.054-.001l189.465-189.489c25.987-25.989 25.994-68.06.001-94.056-25.931-25.934-68.119-25.932-94.049 0l-225.01 225.039c-39.249 39.252-39.258 102.795-.001 142.057 39.285 39.29 102.885 39.287 142.162-.028A739446.174 739446.174 0 0 1 439.497 238.49c4.686-4.687 12.282-4.684 16.969.004l16.967 16.971c4.685 4.686 4.689 12.279.004 16.965a755654.128 755654.128 0 0 0-195.881 195.996c-58.034 58.092-152.004 58.093-210.048.041z"/></svg>Capture.PNG</a>
</div>
</div>


Capture.PNG

lately lot of users are getting this pop up message

when they open outlook 2010

outlook, office 365

Microsoft Outlook is a personal information manager from Microsoft, available as a part of the Microsoft Office suite. Although often used mainly as an email application, it also includes a calendar, task manager, contact manager, note-taker, journal, and web browser.

Outlook

Office 365 is a group of software plus services subscriptions that provides productivity software and related services to its subscribers. Office 365 allows the use of Microsoft Office apps on Windows and OS X, provides storage space on Microsoft's cloud storage service OneDrive, and grants 60 Skype minutes per month. Office 365 includes e-mail and social networking services through hosted versions of Exchange Server, Skype for Business Server, SharePoint and Office Online, integration with Yammer, as well as access to the Office software. All of Office 365's components can be managed and configured through an online portal; users can be added manually, imported from a CSV file, or Office 365 can be set up for single sign-on with a local Active Directory using Active Directory Federation Services.