926      iPhone_iPad_Mac_apple

help with downgrading

my mac mini was shipped with OS X Lion, currently i have upgraded to OS sierra. i want to downgrade it to OS X Lion. but i have not created a time machine backup of OS X Lion, and neither i am able to find it under purchased in app store.

my first upgrade was to maverick, that is available under purchase in appstore. my system seems quite slow with sierra so i want to revert back to OS X Lion. can anyone help me with it.

thank you.

最后更新：2017-09-11 15:41:06

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