My MacBook Pro has been having difficulties at startup.  It sometimes locks and doesn't get past the white screen.  It has also locked up several times and gotten a green stripes across the entire screen.  What is causing this and how do I fix it?

My MacBook Pro has been having difficulties at startup.  It sometimes locks and doesn't get past the white screen.  It has also locked up several times and gotten a green stripes across the entire screen.  What is causing this and how do I fix it?

You don't, take it to Apple for repair.
This might interest you if it's too old to fix.
My computer is not working, is my personal data lost?

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