If you are not involved with music, you may not be familar with Scorch. It's a plugin for reading music online. I have used it for years as a practice aid for my music students and choirs. Even sheetmusic sellers use it for online purchases as it has a print function as well. But, It will not work in Wndows 10. I thought that perhaps it was an Edge issue, but it will not work in Firefox either. It worked in previous editions of Windows without any problem, but now complete failure. Years of work creating practice files are going down the drain unless Windows fixes this. What has WIndows done to render the plugin useless?