I want to learn how my vizio CT15-A4 ultra book can be factory restored

try this link.. How to Restore Sony Vaio Without Disk ....or this link... https://www.google.co.uk/webhp?sourceid=chrome-instant&rlz=1C1CHBD_en-GBGB719GB719&ion=1&espv=2&ie=UTF-8#q=how%20do%20i%20reset%20my%20vaio%20laptop%20to%20factory%20settings

1. Shut down the computer.
2. Press the Novo button. From the Novo button menu, select the Lenovo OneKey Recovery system and press Enter.

Reset to Factory Settings

• 1 Download the computer software for your Western Digital My Book World Edition if you don't have it installed on your computer. The software can be downloaded on the Western Digital website (see Resources.) Install the software to your computer.
  
• 2 Go to the "Start" menu. Click "All Programs," the "Western Digital" folder and then "My Book World Edition Software" to launch the software.
  
• 3 Switch to the "System" tab. Click either the "Restore Configuration" or "Full Restore" button on the tab, depending on your My Book World Edition drive.
  
• 4 Click the "Browse" button, select the factory settings default restoration point, and then "General Restore" to return the unit to factory settings, or click "Full Restore" and then "Restore Factory Default," again depending on your specific My Book World Edition device. The unit powers off, all data is erased from the hard drive and the My Book is returned to factory settings.
  

You need to connect the iPad with an USB-cable to a computer and open iTunes software. there you will see your iPad showing up and you can do a restore:
Restore iPad to new factory condition Restore iPad to new factory condition

I have found that the way to the BIOS settings is by repeated pushing of the F2 key. Just pushing and holding the key won't work. Had to go to Vizio support to learn that as they don't publish much technical info.

This WEB site shows how to restore to out of the box condition.

ASUS Notebook Restore to Factory Settings

http://en.kioskea.net/faq/4162-restore-an-asus-netbook-to-factory-settings

restart your computer then press f8 then choose safe mode..
go to control panel and find windows recovery then choose system restore. then restore your computer on first use

click this site and install a new software for your samsung mobile phone:

http://www.samsung.com/us/support/downloads

or this site:
(this is the download center for samsung mobile phones):

http://www.samsung.com/us/support/downloads

If by "restore" you mean that you are reinstalling Windows onto the disk-drive, to restore Windows to the "as-shipped-from-the-factory" condition, then a failure of that operation can be caused by either of three conditions:

* I/O errors reading files from the CD/DVD disks (due to dust/fingerprints on the bottom of the disks),

* I/O errors writing files to the disk-drive,

* an intermittent problem with the computer's motherboard or RAM, causing "random" failures when using the computer.

So, on another computer, take the CD/DVD disks, and try to copy the entire contents (namely up to 4.7 GB) onto the 'C:' drive, watching for any "I/O errors" during the file-copy operation.
If the file-copy completes successfully, then the copy of the files can be deleted.

If no errors occur, then it's time to suspect that the disk-drive itself is failing.
Buy a new disk-drive, and disconnect the old disk-drive, and connect the new disk-drive,
and restart the "restore" operation. If the "restore" fails on the new disk-drive,
then it's time to suspect that the motherboard has a problem.

No,
On the time of restore factory setting don’t check mark on 3rd parties application


Best Regards & Thanks
Akhtar Mohammad Kalim