Installation guide for Mac OS X.
Installation guide for Mac OS X.
Laptop Model: MacBook Pro 13" Late 2011 (click). Installing the newest Mac OS X on a fresh drive is a clean setup from scratch. Do I need to buy it at the Apple Store or can I do it myself? The old drive still works, but cloning isn't possible because we detected malware. Thanks!
Get the newest MacOS from the Apple Store on your MacBook, make a bootable USB stick using it, and then install MacOS onto that drive.