Here is my contribution for configuring Notepad++ with NPP EXEC (v.7.9.2 -32bit) using just a part from @Mark Mendoza:
If you already installed arara and is working use
in NPP EXEC (F6) add the following:
arara -v $(NAME_PART)
after compiling it will pop-up the .pdf. ...
I also had the problem of TeXWorks taking several minutes to boot. What worked for me was, once it booted, to simply clear recent files (File/Open Recent/Clear Recent Files). Speculation: One of the files on the recent files list was located on an external (back up) drive. Perhaps TeXWorks was trying to access such. I had accessed this file shortly before ...