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Installed Zorrin OS lite on my old HP m7480N desktop and got rid of Windows 7. I messed up my startup boot not recognizing my USB drives as an option to boot first, don't even see them as an option. Tired removing battery to reset CMOS but didn't work.

Looking for other solutions to fix, Boot setup is the Phoenix AwardBios CMOS version 3.15.

Any help would be appreciated. Thanks.

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