Error: Access to the path C:\ …..\Temp.wmf is denied

When exporting to an RTF report, following error message appears

Your request has caused the following error:
Access to the path ‘C:\Program Files (x86)\Diamonds2021\Temp.wmf’ is denied

Solution

1. Close Diamonds
2. On your desktop > Right click the Diamonds icon > Properties > Compatibility
3. Check the option ‘Run this program as an administrator’