Dell Inspirion 13-7353
System BIOS: 1.14.1
Service tag: <Service tag removed>
ePSA: Build 4304.09 UEFI ROM
I updated Window 10 yesterday, and woke up this morning to finde out that my laptop went crazy.
When I turned it on, the supportassist popped up and said, "Operating System Loader has no signature. Incompatible with SecureBoot. All bootable devices failed Secure Boot verification."
First, I went Set up(F2), then Boot Sequence to change boot into Legacy.
It didn't work. Now it says "No Boot Device Found. Press any key to reboot," and keeps on going on loop.
Secondly, I disabled the Secure Boot, but it's still stuck on "November Boot device found."
Thirdly, I tried hard reboot, opened the back and unplugged/replugged the battery, HDD, and CMOS battery. Nothing worked.
Lastly, I read online that I should remove HDD off the laptop and if it passes the Dell Logo splash screen, it means HDD is faulty. I tried it and it went past the Dell Logo. So does it really mean I have a faulty HDD?
I don't know much about hardwares and stuff so it would be very kind of you guys to help me☺
If the problem is what the message states, turning off Secure Boot should have allowed it to boot. You do not need to go to Legacy since a UEFI system will not boot that way.
If something is corrupted, hard to tell what type of message you might get. I have seen a bad drive cause problems because the system cannot read it. But your system should be able to boot to a DVD or USB drive is configured correctly.
Someone may tell you to run the boot diagnostics to see if the drive is having a problem.
XPS 2720, Inspiron 17 7779, Inspiron 15 7567, XPS 13 9365, Inspiron 1545, TB16 Dock
Please run the Diagnostic tool to check hard drive on the system by following steps below:
1. Power off system
2. Power on system, quickly tap the F12 key continuously until you see Preparing one time boot menu in the top right corner of the screen. In the boot menu, stroll down to Diagnostic and then click it. After quick tests, click on Hard Drive and then Thorough Test Mode. Report back any error code.
If there isn't any error code and Hard drive is detected in BIOS, Reset the BIOS to Default Values and see if that will make a difference. If the problem still isn't fix, I suggest you download Windows 10 installation media in the link below to either reinstall windows 10 or use the Repair Your Computer option.
when I try to run the diagnostic, the computer crahses. I get this colorful bars on screen so I have to turn it off. Do you have any ideas to what that means?
The Hard drive is detected and so I ran the diagnostic but it crashed. Colorful bars (?) popped up so I had to turn it off. It's so tick stuck on No Boot Devices Found loop