Asus Eee PC R051PW - Manual (Page 42)

Chapter 4: System Recovery 4-2
System Recovery
Disable Boot Booster in BIOS setup before you perform system
recovery from USB flash disk, external optical drive or hidden
partition.
Ensure to connect your Eee PC to the AC power adapter before
using F9 recovery to avoid recovery failure.
Using recovery partition (F9 Recovery)
1. Press during bootup.
Ensure to press only once during bootup.
2. Select the language you use and
click
to continue.
3. Click Recovery in the Recovery
System dialog box to start the
system recovery.
4. The system starts system recovery automatically and follow the
onscreen instructions to complete the recovery process.