Sorry to say but Google didn't send you that email at all. It is called a "spoofed email", Google it to find out what it means.  I totally advise against using Shaw email. I've a Cogeco account for a decade and I NEVER used their email platform. 

Open a Google email account. They have an excellent spam blocker - which is almost 100% perfect - emails which are sent to to the "spam" folder are kept there for your perusal so you have a chance to take a look. Yep, sometimes they will block legitimate emails, but still 1000 times better and you can add that email address to your address book and it will never be blocked again. Better yet, you can continue using that email address if you move out of the country. 

As for Shaw upgrade, bad move, don't rely on others to be safe . If you use your system for email and web surfing, writing docs, etc think about moving to Linux.. I recommend Linux Mint, which I've installed in 3 of my 5 home machines and never had an issue.