MacBook reset help

Question

Just received my stolen MacBook Pro back. Don't know the user names or password, and when I go to reset they upgraded to osx mavericks, and won't let me restore? Any suggestions to go into a Mac store?

Answer 1

You'll need to Boot to the Online Internet Recovery system.
At starup of the system hold down the Command + Option/alt + r keys and keep them held down until you see a globe on the sreen.
Have the system connected by an Ethernet cable to your internet router. Wifi does work but it is best to have the system wired to your router.
From the resultiing screen that loads, Mac OS X Utilities, Select Disk Utility and click Continue. in the Disk Utility windows that opens select the Top Most Entry in the left column and the partition tab on the the right. From that area select One Partition froom the Partition Layout drop down and set the format to Mac OS Extended (Journaled) and name it Macintosh HD. Then click the Options button and make sure GUID is selected as the partition table.
Then close that options window and Click the Apply button.
Once that completes close Disk Utility and select Reinstall Mac OS X for the list of options.
A New Fresh copy of Lion will be downloaded from the internet and when that finishes the actual install of Lion will begin.
When that is finished the system will reboot and you will be at the original setup assistant system just like you had taken it out of the box for the first time.
Once you do all that post back and I'lll guide you through getting all the iLife apps reinstalled and upgrading it back to wherever it was before it got stolen.