How to put mac os on mac mini 2006?

Question

macOS

I bought an old mac mini 2006, core2duo 4 giga ram. It had win7 on it. Passed the quest "download the original image and make a bootable flash drive" (downloaded 10.12, did not find it older) and then a dead end. I can't boot into boot. Standard PC hotkeys do not work. I pressed alt at boot and saw that the original OS had not yet been removed, but it was ruined and it was not clear how to remove it. The choice between mac os and win7 - does not see a bootable flash drive. I went from under Windows to the diskpart console application - two disks are displayed there: for mac os and win7, it does not see the flash drive. Here the problem seems to be that there is a different file system. The main questions are actually how to boot from a USB flash drive and install a Mac and will sierra get up on an old poppy (in virtualbox on 4GB of RAM it plows completely)? Is it possible to wipe all disk partitions through diskpart and try to boot from a USB flash drive or will I get iBrick?

Answer 1

first, reset the internal nvram
https://www.google.com/search?q=%D1%81%D0%B1%D1%80...
after that, try pressing cmd R at the time of switching on - this causes the Mac bootloader, if it is not on the disk, it will be loaded from the network, if the network is not configured - it will ask for settings,
everything is on https://support.apple.com/ru-ru/HT201255