Overview: We have come across no boot errors like “SupportAssist is Running a System Scan to Detect Any Potential Hardware Problems” followed by an error: “No bootable device Found! Possible causes could be corrupt OS image or a boot device is not enabled in BIOS setup.” And error like “Your system seems to be having trouble starting. Dell SupportAssist is scanning your hardware for a possible cause” on Dell PC. There is a high number of Dell users facing these error messages. If you are in the same situation do not worry, this post will provide you step by step instruction to fix no boot issue.
So, let’s start with the real user’s practical scenarios!
Practical Scenario: Dell Inspiron 13 No bootable device found.
Last week, I turned it on and it said,”SupportAssist is running a scan to detect potential hardware problems.” I really didn’t think anything of it but then I got the following message. “No bootable device found.” For days I have researched to find a solution but I only found outdated post. I feel like I’ve tried everything and can not solve the issues maybe I am doing something wrong??? I have been changing my boot mode multiple times. When I change it to UEFI I get the following message, “Hardware scan complete with no issues. No bootable device found! Possible causes could be a corrupt OS image or a boot device is not enabled for BIOS Set up” When I change it to Legacy it says, “Hardware scan complete with no issues. “Then when I restart it….it goes on a constant loop of, “No bootable device found please press a key…” I have also run the diagnostics and it says everything in my system is fine. I don’t think it’s a virus because I use my Kaspersky religiously lol. I also found recent post on here where people where dealing with the same issue with the Inspiron models.
Source: Dell Community
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There are many Dell users who are facing this issue. Let’s follow the below troubleshooting steps to resolve no boot situation.
Solution 1: Hard Reset
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 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.
Solution 2: Run a Hardware Test to Determine Any Hardware Failure
Even though Dell SupportAssist ran a hardware scan I would still recommend running the hardware test. In order to run hardware test start your PC and immediately keep tapping the 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.
Solution 3: 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 the BIOS screen as shown in the above pic then on the bottom right 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 the 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.
Solution 4: Correct the Windows Boot Manager Entry Under the Boot Sequence in BIOS
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 but 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.
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Solution 5: Change the Boot sequence
Sometimes changing the boot sequence in the right manner fixes no boot.
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 the opposite 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.
Solution 6: Reset your Windows 10
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 option. In case Advanced Options is not there then we have to fail the boot process 3 times. In order to go to the Windows Recovery Environment, you have to force shut down the system on Dell logo two times and start the PC normally for the third time to go to the Windows Recovery Environment. You can try this several times to get to the Windows Recovery Environment. Once you are in Windows Recovery Environment
On Choose an Option screen, click on Troubleshoot.
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.
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