Upgrading , Administer Password , Reset EFI Password And PinLock MacLaptop

Mmac had 2 Sort Of Passwords
1- administrator password There Are To ways (I) Remove Password
ways

(I) Remove Password With Out Losing Data
- Power Mac With ( Command + S ) Key
- Press Ener Key
- mount -uw /
- rm /var/db/.AppleSetupDone
- shutdown -h now

(II) Remove Password And Setup New Mac Os

IF You Have Recovery
Go To Mac With Alt + Power Then Go Recovery Then Do Format To Partition then Put Mac OS X 10.8.4.dmg on flash disk and do install to Mac OS

IF You Have no Recovery
Instal New Mac OS By Mac OS CD , Or Lets Know How Can w Create Bootable Flash Dick On Mac OS
Download Mac OS X Mountain Lion 10.8.4 From Attachment Files
Note' You Can Us Any Os You Need Like 10.9
' Mac Book 2007- Only Working @10.7'
Then

How to Create a Bootable Mountain Lion OS X 10.8 USB Flash Drive
Setup New Lion Mac OS With Any Surfing

Also Other Tool To Create Bootable Flash Dick
But ThisTool Not Supported 10.9

Download Lion DiskMaker 2.0.2
if ur Flash Disk 4GB Use This Version
Download Lion DiskMaker 1.7


2- Let Go About EFI Password's And PinLock
Bypass Mac Firmware Password

1) Shut down your computer

2) Remove the battery

3) Slide one of the levers (it doesnt matter which one) to the left. This will release the RAM

4) Gently wiggle the RAM card out and put it aside, you will put it back later

5) Boot up the computer while holding COMMAND+OPTION+P+R (this resets the parameter ram)

6) Wait for the startup chime to sound 3 times

7) Release the keys and shutdown the machine once you reach the login screen

Replace the RAM module and slide the lever back while pushing it in until it does not wiggle anymore

9) Now if you boot up the machine you should bypass the Mac firmware password.

You can now use the machine as usual, boot from an external drive, or whatever else.