F drive is empty suddenly

[tc_2]

All of a sudden  F drive is empty in my laptop, lost my data, how to recover those lost data ?

[WAWood]

"F" is just a letter and tells us nothing. 

Usually, an OEM PC comes with the drive formatted with the OS on the "C" drive.  The "D" drive is often a Recovery drive that contains the HP files needed for a factory reset.  And there is sometimes a HP Tools drive, which might be "E".

So, you need to tell us details about the "F" drive.