Deleting a folder with thousands or even millions of subfolders and files can be a rather slow process in Windows. Deleting the files normally from the GUI, requires you to empty the recycle bin afterwards, which takes quite some time too. Shift-deleting is faster than deleting and emptying the recycle bin, but also takes a lot of time, as Windows will first index all the files that need to be deleted.
The fastest way to delete folders and files is to make a bat-file with the following 2 lines, specifying what folder you want to delete.
Using this method rather than deleting from the GUI or using “rmdir /s/q foldername” can save you hours of waiting time, depending on your folder/file structure.
del /f/s/q foldername > nul rmdir /s/q foldername