how do you wipe your computer clean?
I have bought a iMac to replace my old one, I don't remember how do you wipe the computer clean?
MacBook Pro, OS X Yosemite (10.10.5)
Clickhereand follow the instructions. If the computer originally shipped with Mac OS X 10.6.8 or earlier, when you reach step 5, insert its original disk, restart with the C or Option key held down, use the Disk Utility to erase the internal drive, and install a fresh OS.
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