Redeeming the old MBA2,1

We have this mid 2009 model Macbook Air (MacbookAir2,1) that has been idle for quite a while. I made the mistake of upgrading it to El Capitan a couple of years back which made it a functional brick. It would boot, but would take a tonne of time doing that. And then anything you click would take 5-10 minutes to happen. I tried all the usual stuff. I threw the DVDs that came with the device, so I can’t so much as roll it back to its good self....

<span title='2017-05-07 04:45:31 +0000 UTC'>May 7, 2017</span>&nbsp;·&nbsp;4 min&nbsp;·&nbsp;abishek