|This is a laptop...? I ask that as there appears to a 8.9inch netbook too with similar designation...|
Regardless - it has a hard drive (maybe even an SSD)?
Does the bios show a HD to be present? If not...
It "may" be that the drive has been dislodged slightly and thus no-longer connected properly to its connector - which may be a very short ribbon system, or a fixed socket on the edge of the motherboard.
If you are happy to go looking...
Remove all power - battery included. Locate the cover (on the base) for the HD assembly and remove it carefully. Use the correct size and type of screw driver; note carefully which screws comes from where - and ensure each goes back whence it came... Sometimes the screws look the same but differ slightly from on another... (Macbooks are like that)
Once inside...check that the HD assembly is securely in place and that the drive is firmly seated into the connector - whichever style it is.
Replace cover and power up?
Pressing the F9 key is to activate and run the factory restore routine; which "will" WIPE everything on the drive and reset it to factory gate/delivery state... So if there's anything on the drive to be saved first (precious personal files - music, photos, letters and who knows what...) - do NOT activate the F9 process. At least not until one has either managed to get the system to boot OK again - and then copied all that "stuff" to external storage (tyically DVD); or recovered (as in copied to external storage - typically DVD) the personal stuff via another method first.
Copying 'stuff" can be done in a couple of ways... But first check if the drive is actually physically connected properly as above; and then also after checking the physical connection - check to se if the bios finds/recognises the drive again.
Again avoid the F9 routine at this stage...; for the reason above.
message edited by trvlr