To install oracle in win7, You need to modify the configuration items. 1. Set the fixed ip address, set the installation program compatibility (windows XP Sp3), and run it as an administrator. 2. Add the following to database \ stage \ prereq \ db \ refhost. xml <version value = "5.2"/> </OPERATING_SYSTEM>: <! -- Changed here --> <OPERATING_SYSTEM> <version value = "6.0"/> <SERVICE_PACK VALUE = "1"/> </OPERATING_SYSTEM> <version value = "6.1" /> <SERVICE_PACK VALUE = "1"/> </OPERATING_SYSTEM> 3. database \ install \ oraparam. ini [Windows-5.2-optional] And then add the following [Windows-6.0-required] # Minimum display colours for OUI to runMIN_DISPLAY_COLORS = 256 # Minimum CPU speed required for OUI # CPU = 300 [windows-6.0-optional] [Windows-6.1-required] # Minimum display colours for OUI to runMIN_DISPLAY_COLORS = 256 # Minimum CPU speed required for OUI # CPU = 300 [Windows-6.1-optional]