Based on the symptoms you described, it seems that the issue is related to the BlockHTTPimages registry value being set to 1. However, since you have already tried updating the registry and checking the location of the Outlook secure temporary folder, there may be another cause for the issue.
One thing you can try is to check if the images are being blocked by your antivirus software. Some antivirus software may block images in emails for security reasons. You can try disabling your antivirus temporarily and see if the images display properly in Outlook.
Another thing you can try is to repair your Office installation. Sometimes, issues with Outlook can be resolved by repairing the installation. To repair your Office installation, follow these steps:
- Open the Control Panel and go to Programs and Features.
- Find Microsoft Office in the list of installed programs and select it.
- Click on the Change button at the top of the list.
- Select the Repair option and click Continue.
- Follow the prompts to complete the repair process.
If neither of these solutions work, you may need to contact Microsoft support for further assistance.
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