Unable to reinstall Mac OS X Lion after erasing HD

gmkpl11 wrote:

If I use my friends Apple ID would I be able to install OS?

Probably but understand that you will be faced with the same issue for ALL updates.

To get your iMac to be associated with your Apple ID, you will have to reinstall the original OSX (Leopard) or install Snow Leopard using this disk:

http://www.apple.com/shop/product/MC573Z/A/mac-os-x-106-snow-leopard

(The HDD will have to be erased first)

Then install the Snow Leopard Combo update:

https://support.apple.com/kb/dl1399?locale=en_US

That will allow you to install newer OSX's, up to and including El Capitan.

Ciao.

The issue is that it's a used Mac > Changing ownership of a used Mac | Communities

gmkpl11 wrote:

Would this step be required even if my friend would erase the disk?

It becomes a question if you want complete control of the Mac with your Apple ID or want to have your friend do it. For example understand that should you desire to download an application, movie, song etc. that requires payment, it will be billed to the individual whose ID is connected to the Mac. Legally, the Mac should be connected to your ID per Apples terms of Use.

Ciao.