07-17-2019 10:35 PM
Product name : HP PAVILION 15 NOTEBOOK PC
Product Number : F6C48PA#ACJ
The following message displays when turned on.
Boot device not found
Please install an operating system on your hard disk.
Hard disk (3F0)
Kindly give solution without losing my personal data
07-18-2019 03:59 AM
This usually indicates a failure of the hard drive. So, first you should perform HP diagnostics at boot.
Turn off the PC by holding the power button. Turn on PC and continously keep pressing ESC until startup menu appears and then press F2 to enter diagnostics. Try the fast test, or at least the hard drive test.
See if there are any hardware errors.
Let me know,