Closed Upgrading Windows 7 Home to Ultimate Tags: Windows 7 Last response: September 5, 2012 7:09 PM in Windows 7 Share jomari29 June 13, 2012 3:39:23 PM Hey guys, My Current OS is Windows 7 Home Premium trial (been using the slmgr /rearm thing) and I just received a wonderful gift, a Windows 7 Ultimate Disc. So can i upgrade my OS without reformat? More about : upgrading windows home ultimate | Report abuse Register or log in to remove das_stig Windows 7 Expert June 13, 2012 3:58:44 PM Yes, you can upgrade home to ultimate, but not 32-bit to 64-bit, you will need a reinstall, personally I would reinstall x64, nothing like a clean build. | Report abuse rubix_1011 September 5, 2012 7:09:07 PM Piracy or bypassing OS authentication is NOT ACCEPTABLE on the forums. Do not suggest anything except legitimate solutions for software activation or purchase. | Report abuse Ask the community Publish Tom's Hardware>Forum>Windows 7>Upgrading Windows 7 Home to Ultimate> Related ressources: ForumUpgrading from Windows 7 Home Premium to Windows 7 Ultimate ForumHow to upgrade windows 7 home basic to ultimate ForumWindows home basic lincense upgrade to w 7 ultimate problem ForumUpgrade win 7 from home basic to ultimate version ForumWindows 7 Ultimate AND Home ? ForumUpgrade windows vista ultimate to 7 home premium? ForumWindows 7 Home Premium vs Ultimate ? ForumUpgrade windows 7 home basic to ultimate ForumCan we change windows 7 home basic to ultimate in sony vaio model vpceh15en ForumUpgrade ( Home Prem) to Windows 7 Pro/ Ultimate or Windows 8 ForumUpgrading Windows 7 Home to Ultimate ForumWindows 7 home premium and ultimate are the motherboards the same ForumVista home premium to Windows 7 ultimate ForumWindows Vista 64 Bit Home Premium or Windows 7 Ultimate 64 Bit ForumWindows Vista 64 Bit Home Premium or Windows 7 Ultimate 64 Bit ForumWindow 7 this copy is not genuine ForumPrinting more than one picture at a time with windows 7 photo wizard ForumToshiba laptop drivers for windows 7 C655-S5540 ForumCanon lbp 2900 driver for windows 7 32 bit ForumHow to play online videos on windows media player More resources Read discussions in other Windows 7 categories Configuration Customization Drivers Security Laptops !