Configuring SQL reporting services

I am having difficulties displaying external pictures from my local drive in a SSRS report. I have read that it might be permissions for the folder in which the images are stored. How can I fix this? How do I give create a execution account where I can give (I am the only one that is going to use the application) everyone permission? I've read and re-read the MSDN "Adding images to a report", but are failing to follow. Any help would be much appreciated. Is my SQL Server (2016 Dev) wrongly configured?