Try disabling AV and reboot to ensure it is off.
Do you only have one AV/protection program?
I use Win 8.1 64-bit (MBR not UEFI) with MS Security Essentials and is OK. Normally it is a problem with some background app. blocking access.
Topic: Easy2Boot
Date 19/06/2015
By SteveSi
Subject Re: Re: Re: MPI - cannot read sector 0
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