1. you can create a system image disk, usually four or more blank dvd-r are needed. you can make this system image disk using your laptop manufacturer's software or using third-party programs like
a. macrium reflect, free for personal use: http://filehippo.com/download_macrium_reflect/
b. TrueImage Build 7119, paid http://filehippo.com/download_trueimage/
c. DriveImage XML 2.44, free http://filehippo.com/download_driveimagexml/
your windows OEM key is found beneath your laptop COA (certificate of Authenticity) sticker.
2. (there are many windows product key viewer out there; be warned, some may contain viruses/trojans/malwares)
installation dvd cannot be created from a manufacturer-installed windows OS.
laptop and desktop manufacturers no longer gives a free copy of windows installer to buyer.