Didn't want to bring up my old thread since the topic has somewhat changed. So just a recap: I spilled tea all over my rMBP and it no longer functions correctly. I want to sell it, but I must first wipe and reinstall OS X. Problem is, the display on the rMBP doesnt turn on, so I have to use an external display. Well the startup manager (cmd-r) , or whatever it's called, does not get recognized when connected to external display, So it's not possible for me to boot into recovery and do it that way. So my plan is to download SuperDuper onto the rMBP and create a copy of the startup files (not the user data, it is not important) onto an external HDD. Then, I will boot the rMBP from the startup files on the external HDD and wipe the internal HDD "remotely". My question/issue is that I don't know what to do after I wipe the internal HDD. How do I reinstall OS X to the internal HDD once it is clean? Will it prompt me after it is wiped? Remember, I have to do all this from the program accessible from the "desktop" since I cannot open the recovery manager. ---------- Also, for what it's worth this is the only MBP I have owned. And I didn't use it very extensively. I am traditionally a Windows guy so all this Apple terminology is confusing to me. This is also the first time I have ever messed with startup partitions.