Can't select the Disc when reinstalling
Hi,
recently, my mac book air is getting slow. My book air is 2015 model.
So I decided to reinstall. I pressed command +R after restarted and input internet password.
Then I agreed to install OS X EL Capitan. The message says "select the disk where you want to install osX. But there is no disk.
How can I fix this problem?
Thank you