Hi moudy - More information is necessary ro help you with this issue.
1) What problem were you attempting to resolve with a recovery?
2) Did you attempt recovery from the ASUS HDD partition or the recovery DVD's you created?
3) Is the boot drive on your system an SDD or mechanical HDD?
4) What is the EXACT text of the error message you receive during the failed recovery? Are any error codes displayed?
5) Have you repartitioned the HDD and removed the ASUS partition?
I'm a user like you and not familiar with this issue, but I can imagine an OS Deployment Error may occur if the DVD disks are bad or they cannot be read during the recovery process. In that case, I would attempt recovery from the ASUS partition on the boot drive. This will not require the recovery DVD's. Hit F9 on POST and it will open the Factory Recovery partition. Follow the prompts.
If the answer to question #5 is YES, you're relegated to using the recovery DVD's or you could wipe everything and do a clean install with a Win 7 disc and use the driver collection in the Sticky thread in this forum.
http://www.asusrog.com/forums/showthread.php?1150-G73-74-53-Series-Driver-and-Application-ReferenceBefore proceeding, I recommend you post more informatiion so other more experienced people on this forum can help you.
G74SX-A1 - stock hardware - BIOS 202 - 2nd Monitor VISIO VF551XVT