Hello,
so I've just got my Redmi 3 and wanted to install Xiaomi.eu_Redmi3_V7.1.3.0.LHPCNCK_5.1 on a blocked bootloader (just asked for the unlock today, so I'll have to wait 2 weeks).
I have Windows 7 @ 64-bit
I installed MiFlash 2015.10.28.0 with all the drivers.
My phone boots normally to...