Processing doesnt open

I did that and it worked but for some reason after turning my computer on and off it wouldnt work again and i had to redo the whole process. Especially irritating since once i open the processing file once and it doesnt open, I have to open and close the computer before I can delete it, because otherwise it says it cant delete the file because its being used…

So am i just supposed to install and uninstall the program everytime I turn off my computer?