I've asked you now NINE
times if Windows 7 came preinstalled on the PC, whether there is a COA sticker, even gave you a picture of one you also ignored.
The fact is Asus cannot legally sell you a PC with preinstalled Windows 7 without a COA sticker attached. It doesn't happen.
You do not need the Recovery partition or Disks to Clean Reinstall - Factory OEM Windows 7
with the official installer for your licensed version provided in Step 1 and the Product Key on COA sticker. You own that copy of Windows 7 for life to reinstall whenever and however you please on that machine. It also qualifies you for Win8.
I cannot remember it ever being this difficult in four years and 32,000 posts to get a point across.