[movie78]

I have a Standalone setup and i can figure out to get back to factory Default.

This the instruction that i am using.

2.3 Perform a Factory Reset
A factory reset is not needed for a standalone setup, but must be performed prior to any dual-boot (re)install.
Create recovery media using step 2 of Google's instructions here: https://support.google.com/chromebook/an...0595?hl=en or use the ChromeBook Recovery Utility from the Chrome web store.
Note: Google's recovery tool can be picky about what kind/size of USB/SD media you use. If one USB stick doesn't work, try another.
With the device powered off, use a paperclip to press the Recovery button and power on the device
Insert the recovery media (USB or SD) when prompted

Note that this will re-partition the internal hard drive and restore the original copy of ChromeOS, erasing anything else on the drive. The ChromeBox will still be left in developer mode, and if you changed the Boot Options they will still be set - so be sure to reset them back to the 'ChromeOS + 30s default' option before performing a factory reset. If you forget to do that, you'll need to press [CTRL-D] on the developer boot screen (or before the legacy boot/SeaBIOS boot screen) in order to boot ChromeOS after performing the recovery.

If you're having trouble creating the recovery media using Google's recovery tool above, you can manually download the recovery image and write it to a USB stick:
Download Recovery image:
Haswell Boxes:
Asus CN60: https://dl.google.com/dl/edgedl/chromeos...mp.bin.zip
HP CB1: https://dl.google.com/dl/edgedl/chromeos...v2.bin.zip
Acer CXI: https://dl.google.com/dl/edgedl/chromeos...mp.bin.zip
Dell 3010: https://dl.google.com/dl/edgedl/chromeos...mp.bin.zip
Broadwell Boxes:
Asus CN62: https://dl.google.com/dl/edgedl/chromeos...mp.bin.zip
Acer CXI2: https://dl.google.com/dl/edgedl/chromeos...mp.bin.zip
Lenovo: https://dl.google.com/dl/edgedl/chromeos...mp.bin.zip
Download Win32 Disk Imager: http://sourceforge.net/projects/win32diskimager/
Unzip the recovery image; the file should be ~1.5 GB
Rename the recovery image extension from .bin to .img
Write the image to your USB media using Win32 Disk Imager