How to Fix Outlook Red X Instead of Images
Question details
The user needs to resolve an issue where Outlook fails to render images in emails and displays a red X placeholder instead.
- Product
- Microsoft Outlook
- Device & OS
- not provided
- Scenario
- Viewing email messages containing embedded images or visual attachments.
- Observed behavior
- Images fail to display in the email body, and a red X icon appears in their place.
Since the recommended solution involves modifying the Windows Registry, ensure you create a system restore point or back up your registry before proceeding.
Fix the Secure Temporary Folder in Registry Editor
Invalid or inaccessible secure temporary folder paths are the most common cause of the red X image error in Outlook.
When Outlook cannot access its designated temporary folder to cache images, it fails to display them and shows a red X instead. Correcting this registry key restores normal image rendering capabilities.
Press Windows + R on your keyboard, type 'regedit' into the Run dialog box, and press Enter to launch the Registry Editor.
Navigate to the following path: HKEY_CURRENT_USER\Software\Microsoft\Office\[Your Office Version]\Outlook\Security. Replace [Your Office Version] with 16.0 for Office 2016/2019/365, or 15.0 for Office 2013.
Locate the 'OutlookSecureTempFolder' string value on the right pane. Double-click it and change the Value data to a valid local folder path, such as 'C:\temp0\'.
Close the Registry Editor. If the 'temp0' folder does not exist on your C: drive, create it manually. Finally, restart Outlook to apply the changes.
Disable Conflicting Outlook Add-ins
Third-party add-ins can sometimes interfere with Outlook's ability to render HTML messages and display images.
Update Microsoft Outlook
Outdated software can contain bugs that affect message rendering. Updating ensures you have the latest patches from Microsoft.
Switch to WPS Office for a Hassle-Free Experience
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Frequently Asked Questions
Why does Outlook block pictures from downloading automatically?
By default, Outlook blocks automatic picture downloads from the internet to protect your privacy and security. This prevents malicious senders from using tracking pixels to verify your email address or track when you open their messages.
How can I unblock image downloads for a specific trusted sender?
You can right-click the red X placeholder or the security warning information bar at the top of the message, and select 'Add Sender to Safe Senders List' or simply 'Download Pictures' for that specific email.
Can a full temporary internet files folder cause the red X issue?
Yes. If your Windows Temporary Internet Files folder is full or corrupted, Outlook may fail to save the cached images required to render the email properly. Clearing your internet cache can often resolve the rendering problem.
What should I do if the registry fix doesn't work?
If modifying the OutlookSecureTempFolder doesn't resolve the red X issue, try repairing your Office installation via the Windows Control Panel. Additionally, check your antivirus software settings, as some strict security tools aggressively scan and block incoming email images.
