First hey hows everyone doing

i need some help...i have no idea where to put this and off the bat i dont know JACK about programming....

if somecan help me please

basically i do part-time photography and some of it are of explicit nature
since i carry my external hard drive where ever i go i want to put a caution message

so when you open the 'photo' folder a message would appear saying "there is explicit material please view with caution" and 2 buttons would be present one if pressed ok button would keep on the folder and exit button would close the folder. or anything close to that nature...if you can even direct to a better forum or page i would greatly appreciate it thank you again