Looks like you've received some good help already. I'll just add that often times with things like this, you are sent a confirmation email. Sometimes you need to use that link to "activate" the account. This is done to prevent bots from creating accounts.
Not sure if this helps but it looks like you need to access the download through a different portal on the website. See link below.
https://files.solidworks.com/pdf/EDU_SW_SEK_Installation_Guide_ENG_2017.pdf