I already know that to open a webpage with the default browser you use: start www.google.com. However, I\'m trying to open a URL that contains a \'&\' in it for
www.google.com
You have to escape the Ampersand (&) character with the ^ character in every occurrence of it.
start https://www.google.dz/?gws_rd=cr,ssl^&ei=rXc_WYq3Msy2abGXpugH#safe=off^&q=hello+world