There’s a link on the Download page for if you’re installing over Remote Desktop on Windows that points to Atlassian, but that (and all other Atlassian pages on the domain) aren’t working. Not sure if it’s a temporary problem or not (nothing is listed on their status page)
Page unavailable
Your Atlassian Cloud site is currently unavailable.
Please check Atlassian Status for known problems.
If there are no known problems and your page hasn’t appeared again in 5-10 minutes then please contact our support team.