Crashes when right-clicking are almost always caused by a bad shell extension, which could also be causing the other problem (but may be unrelated). See Crash, exit or high CPU usage when right-clicking certain files for troubleshooting steps.
I checked my email but only got an email from you saying you couldn't send the file as it's too large. 
You can use Dropbox or GoogleDrive or similar free services if you need a way to send a file larger than your email system allows.