How To Stop Folders Opening in Separate Windows in

This is the problem I am experiencing with some of my ".ico picture." I create folders for my personal use. I do not want the newly created folders to look like the usual windows folders, so I go online and find various pictures to be the face or cover for the folders I create. The original pictures might be in the jpeg or png format. I convert the pictures to the ".ico" format. After I converted the jpeg or png pictures to .ico format, I right click on the folder, I select "properties", I then click on "customize", then I click on "change Icon", I then select "browse", I then go to where I saved the converted pictures to ".ico picture", I select the picture and the picture is now on the folder I created for my personal use. The picture covers the entire folder like it should. After a day, week, or sometimes a month, for some unknown reason to me, the picture on the folder will shrink and no longer covers the entire folder. Do you have some fixes or suggestions that will resolve this problem I am having with the picture shrinkage? I use windows 10 Thank you.

They still ask me on the video you make 7 years ago they stll sask me to adminstarive to open that