Your bug report #70544: 30.0.50; The primitive-function "call-process-region" returns "internal error" and causes high cpu usage on win10 which was filed against the emacs package, has been closed. The explanation is attached below, along with your original report. If you require more details, please reply to 70544@debbugs.gnu.org. -- 70544: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=70544 GNU Bug Tracking System Contact help-debbugs@gnu.org with problems