The ESCD (Extended System Configuration Data) is a method that the BIOS uses to store resource information for both PNP and Non PNP devices. The reason it shows this message is because the system has at least one ISA card in it, and it is running Windows 95. The ESCD boot up sequence arranged by Windows 95 is different from the ESCD boot up sequence arranged by the BIOS. So on boot up, the system BIOS will attempt to update the ESCD. This will in no way affect system performance.

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