Can't open an attachment in Outlook 2016 by double-clicking it
In Microsoft Outlook 2016, when you double-click an attachment to open it, the file does not open. However, you can right-click the attachment and then click Open to open it.
This issue may occur when the setting for the double-click speed for your mouse is too fast.
Change the double-click speed setting to a slower setting:
- In Control Panel, click the Mouse item.
If Mouse does not appear in Control Panel, type "mouse" in the search box, and then click Change mouse settings.
- On the Buttons tab, slide the Double-click speed slider to the left, and then click OK.
Note Sliding the Double-click speed slider one step to the left is typically sufficient to fix this issue. However, if the issue still occurs, you may have to slide it further.
Article ID: 3106898 - Last Review: 10/27/2015 22:04:00 - Revision: 3.0