Posted January 21, 201311 yr FPCH Admin It failed to upgrade. I read the KB and found that upgrade from 32-bit to 64-bit of Windows 7 is not allowed. But not sure whether the Product Key of the Windows 7 Home Premium is either 32-bit or 64-bit. May I know how to check? There is no keyword like x64 or 64-bit on the COA label. What I am sure is the Windows 7 Starter is SP1, while the Windows 7 Home Premium has no preloaded service pack. Is the information above is enough for anyone to help me out? What other ways can I try? (I only have the Windows 7 Starter DVD, the reason why I do not have the Windows 7 Home Premium DVD is that the PC was bought from HP that came without any Windows installation disc and the recovery discs which I had created were no longer readable by the optical drive.) View the thread Off Topic Forum - Unlike the Rest
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