MBP2009 had a major HD-crash, I luckily could fix it with a new SSD and a very old Time Machine-back up. The back-up was with OS 10.8 (Mountain Lion I believe). The new OS Sierra is not compatible for MBP2009, so I am trying to get an older version like Mavericks or Yosemite (10.9 cq 10.10) I was able to download 10.11.6 but couldn't install, because the installation needs a OS 10.11. Any idea where I can get 10.9 Maverick or 10.10 Yosemite? Thanks. --- Post Merged, Nov 1, 2016 --- From what I have been reading in similar threads is that this is not possible? I could not find both of them in my purchases/ App store, but only (again) El Capitan.