Help me please!!! I have a mid 2009 MacBook Pro running Mac OS X Version 10.7.5 it won’t let me update it to anything I tried El Capitan Sierra, high Sierra and nothing I don’t have a disk slot on my computer it was taken off to put another hard drive with a lot of storage and 8gb or ram I tried everything everyone has posted on here! On YouTube. And on other forums can some one please help me image description here](https://i.stack.imgur.com/xOKN2.jpg)
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1In the linked dupe, there are multiple solutions in addition to changing the date. – Allan Feb 27 '19 at 14:03