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satmatic

macrumors newbie
Original poster
Jan 25, 2018
2
0
Hello guys, I installed a new HDD into an old iMac (2012) and I can't install any kind of OS.

I have many USB's with Capitan, Mavericks and High Sierra, and a CD with Snow Leopard.

I'm working with a functional Windows keyboard and when I press some kind of keyboard combination it just does nothing and takes me to a flashing interrogant folder, unless i pres C, that makes a cursor show up and the screen stays blank.

I know windows logo is cmd and alt is options, having this in mind none of this worked to me, already tried to reset ram and i pulled the power like 10 times.

Any suggestions?
 

satmatic

macrumors newbie
Original poster
Jan 25, 2018
2
0
It's not the keyboard, as I said it reacts when I press C but instad of the blinking folder it just shows the cursor on a white screen and I left it like this for hours and nothing. Anyways I tried swapping into 4 different keyboards with no results.
PD: I was able to run a boot utility from a bootable usb but I tried having this started with all of the OS usb's and it just says no bootable system found, and I know those work.
 
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