I have an HP Pavilion dv6-1235et (everything including BIOS is up-to-date) and during an everyday use, it suddenly freezed. i waited for a couple of minutes; however, nothing happened so i forced the laptop to turn off. Then I pressed the power button in order to power it on, I saw the HP logo and stuff, but instead of Windows 10 logo, an error screen appeared, saying "Boot Device Not Found", "Please install an operating system on your hard disk.", and "Hard Disk (3F0)".
Facts to consider:
- This BIOS (InsydeH2O F.44 Rev3.5) does have neither of the options Legacy Boot nor Secure Boot as it can already be seen from the images in the links below.
- Boot priority is in the correct order according to the requirements of this case.
- When a SATA drive is connected, BIOS shows it with the name "Notebook Hard Drive".
- The pc passes all the built-in tests except "Primary Hard Disk Self Test" (Full Test) and says Hard Disk 1 Full (305)
- When a SATA drive is plugged in, no matter what bootable device is connected, a black screen with a winking horizontal line appears, and that is it.
- The SATA drive contains important data that must be recovered and has Windows 10 installed.
- Three different HDDs have been tested, so the problem is not with the SATA drive.
- If the SATA drive is removed but a bootable device is connected, the PC boots normally.
- When the SATA drive (the one that contains important data) is externally connected to another Windows running PC, the PC says that the Hard Drive must be formatted to be opened. In this way, I also checked the Hard Drive with Disk Manager and I saw four different partitions in the Drive: if I remember correctly; there is one for System (500MB), one for Recovery (822mb) and two for personal use (C: and D:). Additionally, in the properties section for these partitions, it says RAW (now I tried the chkdsk command when the HDD was externally connected, it said NTFS, good thing to know)
- After removing the SATA drive, I booted it to Linux Mint, then plugged in the Hard Drive. Linux Mint says that it cannot mount the Hard Drive and suggested that I resume the Windows 10 and turn it off properly. It made me think that the Hard Drive controller supports hot swapping. On the other hand, when I plug out the Hard Drive, boot the pc using Windows 10 DVD, then plug the SATA Drive back in, Windows does not detect any SATA Drive connected (I checked it with command-line, using diskpart, and the repair tools in the DVD)
The problem is that the pc does not boot anything when there is a Hard Drive plugged in through SATA.
I plugged the Hard Drive that has important data externally into the faulty PC after booting to Win 10 Recovery DVD's Command Line and ran the chkdsk *:/f command for the personal partitions. The result is worth checking and can be found in the links below.
It is proved that the aforementioned Hard Drive is faulty due to the following evidence: when the Hard Drive is plugged in to a computer, the pc slows down dramatically; and the error that is encountered while formatting the Hard Drive suggests that the hardware is not working properly. Even though the HDD is faulty, critical data in the HDD is secured with GParted.
However, whatever it is that causes the laptop not to boot properly when there is a Hard Drive connected through SATA remains unknown, and there is still data in the faulty HDD that was not purged even after the several formatting attempts made utilizing different software on different operating systems. Hence, this thread is still active, awaiting your advices.
VERY SIGNIFICANT UPDATE
I tried to boot the laptop when another SATA drive was plugged in internally and it turns out that the other three HDDs are all faulty, since this time PC booted to Linux without a single problem. From now on, I will be attempting to repair the other three Hard Drives and most likely am going to ask more questions on this website related to the Hard Drives. Thanks to those who endured my messy way of solving the problem and did not hesitate to give any advice they could think of on account of solving the problem.