Join Date: Aug 2010
Location: LGA - JFK
Programs: UA, AA, DL, B6, CX, KE, Latitude, VIFP, Crown & Anchor, etc.
Posts: 2,589
From the Sony Viao support docs - the following "generic" steps are outlined ...
Remove any added/external hardware and all removable media (+ disable all network access) ****
Reset computer BIOS to the default values.
After resetting BIOS, ensure the Hard Disk Drive is detected in the BIOS.
If HDD is not detected in BIOS then a hardware failure has occurred and HDD may need to be replaced.
If HDD is detected in BIOS but OS will not load, access recovery tools using the Assist button or F10 and do a Data Backup (if possible).
NOTE: Perform a Full System Recovery by accessing the hidden partition. If the hidden partition cannot be accessed (Viao Recovery Wizard,) the Recovery Media Kit. will be required.
**** Pull the laptop battery and disconnect AC source after fully powering off (not sleep mode/quick resume) - wait 10 to 15 minutes, then reconnect and see if you can boot into Bios setup (F3 or F2 at initial Sony screen, then F1 quickly) While you are waiting, as others suggested, pull & re-install the HDD if you have the philips screwdriver.
Good luck & most likely, time to consider shopping for a new replacement HDD.