Can’t reinstall MacOs because disk is locked (2nd hand MacBook)

Can’t reinstall MacOs because disk is locked (2nd hand MacBook) So I got a second hand macbook pro. I tried to reinstall macos, but it says that its locked
Asked by: Guest \| Views: 252

Total answers/comments: 3

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mcgyver89 [Entry]

"S W

@avanteguarde

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mcgyver89 [Entry]

"Try this:

Restart , Hold down CTRL+OPTN+R

it should get into internet recovery, Circling globe and it will end up in disk utility page.

Click on disk utility and erase the hdd from internal only once done go back and go to reinstall Osx sierra."

mcgyver89 [Entry]

"I also had an issue with a locked disc when I was in recovery mode.

I ended up installing High Serria on a thumb drive, rebooting the mac holding down command, and selected the thumb drive to boot from. From there I was able to erase the mac's hard drive with JOURNALED selected. Exit disc utility and installed High Serria. It's installing now. I'll message again if there are any problems."