VISTA installation load failure - BIOS is not ACPI compatible

[Klums]

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I am trying to install Windows Vista Beta 2 on one of my desktops running with Via motherboard. Every time I start the installation, just after installation environment gets loaded, I get an error message saying:

“Windows failed to load because the firmware (BIOS) is not ACPI compatible
Status: 0xc0000225”

I don’t know why the error is saying about ACPI because I checked my MOBO’s specification and it has the ACPI support. Any idea what could be the problem and how can I get the installation completed? Many thanks.

[jean]

Hello Klums, thought your Mobo supports ACPI, but is it turned on? You need to enable the ACPI from BIOS. Do it and try again.

[Pugsly]

Wow, you are great jean. That really helped. Actually the ACPI was turned off in BIOS. As you said, I enabled it from BIOS and installation went fine.

Thank you.