Overview: No boot situation are very common and almost every Windows user face no boot issue once or twice. There are many Dell users who are facing no boot issue where the computer does not boot to the Windows.
Example of No Boot Scenarios:
- System stuck on Dell logo or does not go beyond Dell Logo.
- An error “Your PC ran into a problem and needs to restart message“.
- System restarts all the time, not giving a chance to log in to the Windows.
- Error “SupportAssist is Running a System Scan to Detect Any Potential Hardware Problems”.
- No bootable device Found.
- Error “Your system seems to be having trouble starting. Dell SupportAssist is scanning your hardware for a possible cause”.
- Error “Operating System Loader Has no Signature. Incompatible with SecureBoot. All bootable devices failed Secure Boot verification”.
- Or any situation where you are not able to login to the Windows or go beyond the Dell logo.
So, let’s start with the real user’s practical scenarios!
Practical Scenario 1: No Bootable Devices Found
Bought a new refurbished laptop last month. It’s been working fine until now. Today when I tried to start, it would run diagnostics and say no problem detected. After diagnostics, it says “No bootable devices found”. The only option on the screen is Shutdown. In BIOS, it does detect primary HDD. Boot sequence only has UEFI option. Tried to restore default setting in BIOS without any luck. Tried to disable “secure boot” as per other thread but no luck. It is a Dell Inspiron 5570. Can someone help?
Source: Dell Community
Practical Scenario 2: Inspiron 15 3000 Won’t Boot Up Properly
So I just got Dell Inspiron 15 3000 last night, it’s brand new and it’s been working wonderfully. This morning I was trying to install my drawing tablet, for which I had to restart my computer. I admit this next part is my fault and is probably why my laptop is broken. I clicked the restart button on the start panel so I could finish installing my tablet, and the “Getting Windows Ready, do not turn off your PC” screen showed up. It stayed on screen for like 10 minutes and I was getting impatient so I just hard shut off my laptop. Then, when I tried to turn my laptop on again, at first it showed the Dell logo as normal, but then the screen just turned black. Like, the screen was on (like, there was light coming out of it), it just wasn’t booting into the lock screen. It’d been like that for like 5 minutes, so I restarted. Same thing. Over and over. If someone could help me that’d be cool.
Source: Dell Community
Unplug all external devices, try unplugging all devices from your computer. The only devices you should leave connected to your computer are your monitor, mouse, and the keyboard, if the computer is a desktop. Now Shut down your desktop and unplug the power cable from the desktop.
In case of laptop unplug the charger and remove the battery if applicable.
Now press hold the power button down for approximately 15-20 seconds then plug in the power cable back to the desktop and plug in the battery and charger back in case of the laptop and start the system. Most of the time performing hard reset fixes the issue. In case the issue still persists move on to the next step.
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Run a Hardware Test to Determine Any Hardware Failure
In order to run the hardware test, start your PC and immediately keep tapping F12 key on the keyboard. It will take you to the Boot menu, use the down arrow key on the keyboard to select Diagnostic and then hit Enter on the keyboard. Make sure the charger is plugged in if you have Dell laptop. In case if you receive any hardware failure message then get the hardware replaced. I have seen cases where hard drive failure is responsible for no boot issue. In case of hard drive failure visit the below link to troubleshoot further:
Reset BIOS to Default
Start your PC and keep tapping F2 on the keyboard to enter the system setup. Depending upon the type of BIOS the BIOS screen will be different as shown below.
If you have this BIOS screen as shown in the pic above then click Restore Settings or Load Defaults whichever is mentioned.
Make sure BIOS Defaults is selected or confirm to load the defaults and click OK.
The system will restart now.
If your BIOS looks like above pic then press F9 on the keyboard to Load Optimized Defaults or Load Optimal Defaults and then press F10 on the keyboard to save and exit.
The system will restart now. If the system does not boot after the BIOS reset then follow the next step.
Correct the Windows Boot Manager Entry Under the Boot Sequence in BIOS
We have seen this solution has worked in 90 % of the cases approx. where the error is “Operating System Loader Has no Signature. Incompatible with SecureBoot. All bootable devices failed Secure Boot verification”. So, following this step should resolve the issue.
Start your PC and immediately keep on tapping F2 on the keyboard to get into the BIOS. Once you are in the BIOS
Expand the General option and then select Boot Sequence as shown below
Now Click on Add Boot Option under Boot List Option
A new window will pop up, under the Boot Option Name type in Windows Boot Manager and under File Name type in /EFI/BOOT/BOOTX64.EFI and then click on the small box which has three dots in it in front of the file name as shown below in the pic. Now click on OK, all entry will go away do not worry click on OK and then click Exit on the bottom right of the screen.
The system will restart now, it may take some time but it should load the Windows now. In case the issue still persists follow the next step.
Change the Boot Sequence
Sometimes changing the boot sequence in the right manner fixes the issue.
Start the system and immediately keep on tapping F2 to go to the BIOS.
Under the General select Boot Sequence and check the Boot List Option, is it set to Legacy or UEFI. If it is set to Legacy then set it to UEFI and hit Apply on the bottom right. Sometimes UEFI is greyed out. In that case, you have to make sure that under Advanced Boot Options “Enable Legacy Option ROMs” should be unchecked and Secure Boot should be enabled. You have to hit Apply after every change you make on the bottom right of the screen. See the pic below to understand it better.
After making the necessary changes hit Exit on the bottom right. The system will restart and it should load the Windows.
Sometimes doing vice versa also fixes the problem i.e.
Boot List Option- Legacy
Secure boot- Disabled or off and
Load Legacy Option ROMs – Checked
In case the issue still persists then jump to the next step.
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Reset Windows 10 Using Advanced Boot Options
If somehow system files have gone corrupt then resetting the Windows will fix the issue. If you see the Advanced Options on the no boot screen then we can reset the Windows using Advanced options.
In case Advanced Options is not there then you have to let your system fail to start at least 2 or 3 times to trigger the Windows Recovery Environment.
Steps to go to Windows Recovery Environment:
- Press and Hold the power button to shut down your PC.
- Press the power button again to start your PC.
- On the first sign that Windows has started (for example, when you see a Dell logo) hold down the power button for few seconds to turn off your PC.
- Press the power button again to Start your PC.
- When Windows restarts, hold down the power button for few seconds to turn off your PC.
- Now press the power button again to start your PC.
- Doing this will allow your PC to restart in Windows Recovery Environment-WinRE. In case it does not take you to WinRE mode, try repeating the above process again till it boots to Windows Recovery Environment.
On the Choose an option screen, Click on Troubleshoot
Now click on Advanced options
On Troubleshoot screen, select Reset this PC or Factory Image Restore– Factory Image Restore option takes less time if this option is available then go for factory image restore.
On the Reset/ Factory Image Restore screen, select Keep my files/Remove Everything– It is recommended to select remove everything because if the system files are corrupt it may not work, please note that you will lose all the data on the system.
It will take some time to Reset/Factory Image Restore. RESET will take longer. Once it is done you have to set up the Windows 10 and start using your PC.
Reinstall Windows 10 Using USB Flash Drive
Many times, it is seen that the system does not go to the Advanced Options or Windows Recovery Environment in that case you have to reinstall the Windows 10 using the USB flash drive. In order to reinstall the OS, you need another working computer with internet access (to download windows 10 and create media on the flash drive) and at least 8GB of empty USB flash drive. Please note that reinstalling the Windows will remove/delete all the data on the system.
Please visit this link to learn how to reinstall Windows 10 using USB flash drive
In this post we learn about different ways to fix no boot issue, I hope this post helped you to fix no boot situation on your Dell systems.