- Go to http://www.hirensbootcd.org and download the latest Hiren's BootCD.
- Get a pen drive and follow instructions on this page http://www.hirensbootcd.org/usb-booting.html to get your pen drive bootable with it.
- Boot from your Hiren's bootable USB and choose Mini Windows XP
- One inside Mini Windows go to start menu and choose Search.
- Search for "*.eml" without comas. Once it finds all of it in your system you can now select all of them and finally DELETE!