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nitro3241

macrumors newbie
Original poster
Apr 23, 2018
1
0
i need help instal system in to macbook pro 2011year . Previously i have high sierra but i format disk and now my macbook want to instal osx lion 10.7 but when i instaling sytem i have fault"this thing is temporarily unavailable" how system i should instal in my macbook pro 13'. thank you
 
If your computer was running high sierra, the boot rom will have been updated so that holding CMD+Option+R will automatically go to system recovery for the latest supported MacOS version. If you do Shift+CMD+Option+R you will get the original OS it shipped with or the oldest still available.
 
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