Hello fastmate,
Uninstall the nonessential programs.
Microsoft will NOT send you an installation disc or file for Windows 7 Home Premium. If you wanted to purchase a computer without superfluous software, you should have purchased from a trusted local computer shop who would have installed a systembuilder/OEM
license for Windows, which is the OS only and not all that extra stuff.
You can purchase a systembuilder/OEM license form Windows 7 Home Premium from trusted local computer shops, or you can buy locally or online from trusted sources who cater to the small builder and computer enthusiast, such a newegg, Microcenter, Frys, etc.