Sometimes when the CMOS battery dies the BIOS will reset the drive configuration from AHCI to RAID. If that’s the case, you would not be able to see your hard drive until you swap the configuration back to AHCI. This is a common issue with Dell workstations. I actually just fixed two Dell Latitude laptops with this issue by replacing their CMOS batteries so can confirm it is very much still a problem (and has been since first experiencing the issue in 2012). When removing the CMOS battery the BIOS would reset back to RAID and the hard drive will be inaccessible. Not sure if that’s the issue you’re experiencing but definitely worth a shot. Edit: to clarify, make sure your BIOS drive configuration is set to AHCI not RAID. Answer from eggplant_zoo on reddit.com
Dell
dell.com › support › kbdoc › en-us › 000128655 › no-boot-device-found-when-you-change-the-boot-sequence-to-legacy-mode-or-install-os-under-legacy-mode
Resolve No Bootable Device Found Error in Legacy Mode on Dell Computers | Dell US
The following error may appear after operating system installation: No boot device found. This error occurs when the device BIOS boot sequence is set to Legacy mode. If the operating system is installed in Legacy mode, the error message appears when you reboot the computer.
Dell
dell.com › dell community › software › supportassist for pcs › supportassist for pcs
No Boot Device Found | DELL Technologies
July 23, 2025 - The SSD didn't show up in Windows File Explorer, and when I launched Disk Management, Disk Management said "Connecting to Virtual Disk Service forever. I had to CTRL-Alt-Del out. As soon as I disconnected the external adapter, Disk Management found all other drives.
No bootable devices found
If I power down the laptop and then turn it on, it boots normally. However when I boot into windows 10 and then restart, only then do I get the "No bootable devices found" error. More on dell.com
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July 19, 2019No Bootable Devices
Recently, I've been having a problem with my Dell laptop. Whenever I load it up it says "No bootable devices found." Someone strange though, is that if I repeatedly power on and off there's a chance that it'll load normally. Any way to fix this? Windows for home | Windows 10 | Performance and ... More on learn.microsoft.com
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WDS and Windows 10 UEFI mode Error 'No Bootable Device'
Hi We are trying to install Windows 10 OS UEFI mode through WDS pxe boot, but we are getting error No bootable device error on Dell Assistant tool. the same image working through usb deployment in ... More on dell.com
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March 29, 2019No Bootable Devices
Recently, I've been having a problem with my Dell laptop. Whenever I load it up it says "No bootable devices found." Someone strange though, is that if I repeatedly power on and off there's a chance that it'll load normally. Any way to fix this? Windows for home | Windows 10 | Performance and ... More on answers.microsoft.com
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May 26, 2023What does it mean when a laptop says, 'No bootable devices found'?
When your laptop displays the error message 'No bootable devices found,' the computer cannot locate any storage device containing the necessary files to start the operating system. This can happen due to various reasons, such as incorrect boot device selection, corrupted boot sectors, or faulty hardware connections.
easeus.com
easeus.com › partition master › how to fix dell no bootable devices found [2026 full guide]
How to Fix Dell No Bootable Devices Found Windows 10/11
How to fix 'No boot devices found' on Windows?
To fix the 'No boot devices found' error on Windows, you can try the following steps:
Step 1:Ensure the correct boot device is selected in the BIOS or UEFI settings. Check the connections between the storage device (hard drive or SSD) and the motherboard.
Step 2:Run a startup or automatic repair using a Windows installation disc or USB drive. Rebuild the Master Boot Record (MBR) using specialized tools or commands. Moreover, perform a clean installation of Windows if all else fails.
easeus.com
easeus.com › partition master › how to fix dell no bootable devices found [2026 full guide]
How to Fix Dell No Bootable Devices Found Windows 10/11
How to boot into Dell in BIOS?
To boot into the BIOS setup on a Dell computer, follow these steps:
Step 1:Restart your Dell computer. Look for the key prompt displayed on the screen during startup (commonly F2, F12, or Del) and press it repeatedly.
Step 2:This will enter the BIOS or UEFI setup menu, where you can configure various settings related to your computer's hardware and boot options. Navigate through the BIOS setup using the arrow keys, make the necessary changes, and save your settings before exiting.
easeus.com
easeus.com › partition master › how to fix dell no bootable devices found [2026 full guide]
How to Fix Dell No Bootable Devices Found Windows 10/11
Videos
Reddit
reddit.com › r/dell › laptop saying no bootable devices found?
r/Dell on Reddit: Laptop saying no bootable devices found?
January 24, 2023 - I've had a dell where it was a bit loose, and if you knock the laptop just right it would disconnect. I rigged up something to hold it in place better and it's worked for months without doing it now. It's probably a dead drive really, but worth a shot. ... My PC keep notifying me no bootable device. How can I fix this problem? ... If the computer sits for awhile without power, I’ve found I needed to perform a hard reset to get the motherboard to recognize the hard drive: https://www.dell.com/support/kbdoc/en-ca/000132300/how-to-troubleshoot-hard-drive-or-solid-state-drive-issues-on-a-dell-computer
EaseUS
easeus.com › partition master › how to fix dell no bootable devices found [2026 full guide]
How to Fix Dell No Bootable Devices Found Windows 10/11
2 weeks ago - By following the steps outlined below, you can embark on the path to restoring your Dell computer's boot functionality: Step 1: Insert your Windows installation disc or USB drive and restart your computer.
Dell
dell.com › dell community › software › windows general
No bootable devices found | DELL Technologies
July 19, 2019 - But the area Windows is to be install can not have any of the critical partitions remaining windows need to install itself. The bootx64.efi trick is for systems which have lost the primary boot device and that has worked for a secondary option although I have never tried it.
Tenorshare
4ddig.tenorshare.com › windows fix › solved: how to fix no bootable devices found?
[8 Ways] How to Fix No Bootable Devices Found? - 2026 Latest
March 26, 2026 - If your system partition or the C drive has been inactivated by mistake, it can result in the no bootable devices found dell error. Follow these steps to make the C drive active again for a successful boot. Insert the bootable Windows 10 USB stick or disc into your PC.
JustAnswer
justanswer.com › laptop › fdbbi-dell-laptop-running-win10-showed-message-no.html
Dell Laptop No Bootable Device Found - Expert Solutions
When encountering 'No bootable device found' with BitLocker enabled, first access BIOS to confirm the boot order prioritizes the correct drive. BitLocker may require a recovery key if system changes trigger its protection.
MiniTool Partition Wizard
partitionwizard.com › home › news › no bootable devices found dell? here’s how to fix it
No Bootable Devices Found Dell? Try These Fixes
June 20, 2024 - In the case that a damaged MBR results in the “no boot device found Dell” issue, you may need to rebuild the MBR. You can repair MBR easily with this guide: LOOK! How to Recover Damaged Master Boot Record with Two Methods. Another way you can try when stuck in the “no bootable devices found Windows 10 Dell” issue is to reinstall your Windows 10.
Dell
dell.com › support › contents › en-us › article › product-support › self-support-knowledgebase › fix-common-issues › no-boot
Computer Cannot Boot into Windows | Dell US
Here are some common questions ... start Windows. We’ll help you understand why this happens and what you can do to fix it. 1. What are the most common error messages and their meanings? No Boot Device Found: The computer cannot find a device to boot from, usually indicating a problem with the hard drive or its connection. Boot Device Not Found: Similar to No Boot Device Found, this error indicates that the computer cannot locate a bootable ...
Quora
quora.com › How-do-I-fix-a-computer-Dell-Windows-10-that-has-a-No-bootable-devices-when-turned-on-Im-dumb-and-accidentally-deleted-all-internal-files-including-the-OS-apparently
How do I fix a computer (Dell/Windows 10) that has a "No bootable devices" when turned on? I'm dumb and accidentally deleted "all" intern...
Answer (1 of 8): How do I fix a computer (Dell/Windows 10) that has a "No bootable devices" when turned on? BIOS/UEFI When you turn the computer on look at the bottom of the screen for a message like Press F2 for setup, F10 for boot menu. Go into setup and look for settings for boot priority or...
Dell
dell.com › dell community › software › windows general
No bootable devices found after attempting to install windows 10 from bootable USB on Dell Precision 3510 | DELL Technologies
June 3, 2017 - Using DVD with Windows 10 provided by Dell I created a bootable USB in order to install windows 10 on my laptop. However, after recovering procedure laptops displays message: No bootable devices found · press F1 to retry boot · F2 for setup utility · F5 to run onboard diagnostics.
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In addition to my reply above, if you're running DHCP on a Windows Server, you might this guide helpful. In my environment, DHCP is provided by another non-Windows device, and the WDS server and all clients are on the same subnet, so we don't have to configure any DHCP options anywhere. Instead, the WDS server is configured to listen for DHCP traffic and respond to clients that are attempting to PXE boot, so that might be why things are more automatic here. In our WDS server properties under the DHCP tab, both of the options there are unchecked because of how we've deployed our solution. However, if you're running DHCP Server on the same server that you're using for WDS, you should be able to check both of the options under that tab so that WDS auto-configures DHCP. But if you're running DHCP Server on some other Windows server, or running a non-Microsoft DHCP server on the WDS server, or your WDS server isn't on the same subnet as all clients, then you will likely have to configure the options mentioned in that guide manually on the DHCP server.
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Make sure the PXE boot itself is occurring in UEFI mode. To do that, go to the NIC Settings in the BIOS and check the 'Enable UEFI Network Stack' option. Then when you choose to boot from the network using the F12 boot menu, make sure you choose the option under the UEFI section. And actually, disabling Secure Boot and enabling Legacy Option ROMs is only going to make this more difficult for you. If you want to run Windows in UEFI mode, then you don’t need to do that, and setting those options that way just enabled legacy booting options that you don’t want. Set Secure Boot back to enabled, which will force you to disable Legacy Option ROMs.
Laptops Service
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Dell No Bootable Devices Found: Causes, Fixes, And Expert Tips
January 2, 2025 - Create a bootable USB with Windows 10 or 11 installation files. Boot into the USB drive by selecting it in the BIOS boot sequence. Follow the prompts to reinstall Windows. A dead CMOS battery can reset BIOS configurations: Replace the CMOS battery with a new one. Reconfigure BIOS settings to UEFI and AHCI as needed. Dell’s SupportAssist often detects boot errors and suggests fixes. If you encounter the SupportAssist no bootable device found ...
Dell
dell.com › support › contents › en-us › videos › videoplayer › how-to-do-no-boot-troubleshooting › 6308322388112
How to do No Boot troubleshooting | Dell US
Click finish to complete the restore process. If the system couldn't boot into safe mode, we need to verify if the hard drive is detected. To do so, turn on your computer. Repeatedly tap the F2 key at the Dell logo screen to enter BIOS. Expand the general settings and click on system information.
Wondershare Recoverit
recoverit.wondershare.com › computer-problems › no-boot-device-available.html
How to Fix No Boot Device Available on Dell[2026]
Fix the Dell "no boot device available" error by verifying the BIOS boot sequence, performing a hard reset, or executing system repair tools via a Windows 10 bootable drive. ● Resolve incorrect boot priorities by pressing F12, Esc, or F8 during ...
DiskPart
diskpart.com › aomei software › free partition software › solved: no boot device available dell [4 effective ways]
Solved: No Boot Device Available Dell [4 Effective Ways]
September 14, 2023 - Rebuilding your hard disk MBR sector is also an effective solution to troubleshooting the no bootable device found Dell problem. For this task, if you have Windows installation CD, you can access to the Command Prompt, and execute the command "bootrec.exe /FixMbr".
DiskPart
diskpart.com › aomei software › partition windows 10 › no bootable device found in windows 10 - solved now!
No Bootable Device Found in Windows 10 - Solved Now!
August 6, 2024 - If your computer's MBR is corrupted, try to enter the Windows recovery environment using a professional repair tool. This article is suitable for no bootable device found on Acer, HP, Lenovo and Dell.
Quora
quora.com › How-can-I-fix-my-Dell-laptop-showing-no-boot-device-found
How to fix my Dell laptop showing “no boot device found” - Quora
Answer (1 of 5): A bootable device can be one or more of the following things: * your system disk, in Windows-speak, your C-drive * a CD or DVD * a USB-stick * an image that you connect to via the network (the latter is very rare for home computers, so we will ignore it in this answer) In yo...