JwAlstrom Newbie Poster 14 posts since Apr 2008 Reputation Points: 0 [?] Q&As Helped to Solve: 0 [?] Skill Endorsements: 0 [?] •Community Member • Sponsor 0 2 Years Ago . Windows-7 - 32-bit upgrade to 64-bit - I have 32-bit Win-7 Home premium. Is there an UpGrade to Win-7 64-bit Home Premium or PRO -without starting over and paying the full cost to MicroSoft? . "Branded" versions of Win-7 PRO - these are sold at a much lower cost then the full system is advertised for. Question: Is this "branded" Win-7 fully installable and usable for my custom built desktop? . Any disadvantages in going this route? .