I wish to install os x 10.9 but I dont find the option "Install OS X Mavricks using the recovery partition". I have intalled the last version of parallels 9.
I foud the solution. The Recovery partition wasn't installed on my computer. I use "Recovery Partition Creator 3.8" to create one and the option appear!
OS X Mavericks is available for download via App Store, Purchased Apps.
Download, abort install. Drag it on the desktop. Parallels Desktop will then see it, when searching . You will get a clean install for testing purpose.