Should I switch to Linux or install on Windows account?

Hello everyone, I’ve been trying to install wordpress on my godaddy domain for the past few days, and I’m still unsuccessful. I have a windows deluxe hosting account with 2 domains, and I wanted to install wordpress on the second domain,which is not primary. When I went to GoDaddy Hosting Connection, it showed my primary domain as the only one compatible hosted domain. I contacted GoDaddy, and they told me that it’s not possible to install wordpress through their quick install options for aliased domains on Windows IIS7 accounts, but how come my primary domain displayed as compatible?? They advised to manually install WordPress for the aliased domain or switch to a Linux hosting. Please, can someone advise me on what I should do?? I really want to have wordpress blog on my second domain, and I want to have a simple html webpage on my primary domain. I’m very confused, and don’t know what to do :(.