Hi, Please help me to install the Oracle 10.2.0.1 on Windows 7 x64 Enterprise. Before, we installed it successfully but after the machine was refreshed and reinstall the 10.2.0.1, we can't install it. Below are the details. when the prerequisite window loads, it closes automatically. Here below is the log regarding the prerequisite checking: *** Product-Specific Prerequisite Checks Page*** INFO: Entry pointracle.client_Administrator_install INFO: Starting Prerequisite checks : Fri May 22 06:31:49 GMT 2015 INFO: Checking CertifiedVersions This is a prerequisite condition to test whether the Oracle software is certified on the current O/S. Thank you.