Factory reset for my asus pc

Hello,
To restore your computer to factory settings, you need to use the tools provided by Asus. You probably have a partition called Recovery. (For your information: restoring to factory settings will delete all your data, so make sure to back it up beforehand).

Here is the method described on the Asus website:
Use the recovery partition (depending on the model)
1. Press the < F9 > key during startup.
2. Press [Enter] to select Windows Setup [EMS enabled].
3. Select the restoration language and click Next.
4. Read the contents of the "ASUS Preload Wizard" window and click Next.
5. Choose a partition option and click Next. The partition options are:
Restore Windows only on the first partition.
This option deletes only the first partition and allows you to keep other partitions, and to create a new system partition as drive "C".
Restore Windows on the entire hard drive.
This option erases all partitions on your hard drive and creates a new system partition on drive "C".
Restore Windows on the disk with two partitions.
This option erases all partitions on your hard drive and creates two new partitions: "C" (25%) and "D" (75%).
6. Follow the on-screen instructions to complete the restoration process.

The link: http://support.asus.com/Troubleshooting/detail.aspx?SLanguage=en-us&p=3&m=N90SV&s=173&hashedid=YBBc5YB4QLffAY1T&os&no=1775

Bye