|I suspect it is a variation on a .ink file virus. My guess would be that the files that you see are fakes, and the real images are hidden.|
Before you go to the next step, can you opposite click on one of the files in question select properties and post back the name of the image, and also the directory it is found in.(for example c:\myimages\)
also the size it claims to be if it is different then the 41 Mb.
First step may be a roll back through system restore. If that fails to work a quick Malwarebytes scan may reviel your trouble maker, feel free to post the log back.
Thanks for you reply.