I switched from Mac to Windows recently and would like to continue to use Emacs as my editor. On my macbook I could make the pdf file from my tex file from the command line and open the pdf while the pdf file was open. It would rewrite it and then reopen the new version of the pdf. In windows pdflatex stops running and says that it can't write to the pdf file when it is open. Is there a way around this? Is it the pdf viewer I'm using or is it a problem with how Latex works in windows.