Still pretty much unclear, so I will guess...
Confirm that you have this 'orchid' on screen where no file of an orchid is loaded as your preference in 'Personalize'. It appears on every screen? Is the same or does it change and to what? Is fan working? Is there good flow through ventilation? Last internal cleanout was when?
First, try safe mode to see if issue remains - if it goes away, use DDU to remove all traces of old video driver and download and install new.
If it does not go away, then it is likely you have a hardware failure in the video sub-system. Check Device Manager for errors.
Please answer all questions and describe what you learn from each step in some detail. You are the 'eyes, ears and hands'.