Inherited an Imac 21 inch, upgraded to 4 gig ram and OS 1-.11.6 El Capitan. How do I clean the Machine out, delete the old user and add myself as the user? I WANT TO HAVE MY OWN ACCOUNT, and use the same Apple ID as I do on my I-Phone & I-Pad.
Also I would like to upgrade the OS to Sierra. Will I have to purchase an interim OS?
Model Name: iMac
Model Identifier: iMac.1 (Snow Leopard) NOW EL CAPITAN
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 6 MB
Memory: 4 GB ( DDR2 SDRAM @800mghz)//2 banks 0=1 &1=0)
Bus Speed: 1.07 GHz
Boot ROM Version: IM81.00C1.B00
SMC Version (system): 1.29f1
Serial Number (system): W8810D19ZE2
Hardware UUID: 03E452A0-6716-58CF-9FB5-25C21E40963D