“No boot device available dell”
“About a month ago my Dell Inspiron 15 began to refuse booting and give the report
“no bootable devices available. Press the F1 key to retry boot, F2 to run the Setup
utility…”. This has been going on nearly every day. Striking the F1 key doesn't
help. It gives the same error. What else can I do about this?”
What does “No Boot Device Available” mean?
When your computer fails to
boot and pops this error message saying no bootable devices found, you might
wonder what does the message mean? Basically, this error means the computer was
unable to get any access to the disk that holds boot information, scanning all
connected disks for boot information but getting nothing, or there is something
wrong with the cables or Windows boot files. So it cannot boot successfully.
Therefore, if you want to fix no boot device available Dell, you should first figure
out why this occurs. Here are some major causes you can consider.
Generally speaking, if your computer is attacked by virus, the essential system files
or folders might get damaged, and the computer cannot recognize or find the bootable
disk. Run antivirus software or format your hard disk via a disk formatting utility to clear the
If you insert an unbootable disk or CD into your computer and set it as boot device
by mistake, this error will appear since only when the drive that loads operating
system is set as the bootable device, the computer can start smoothly.
When the internal hard disk is damaged, the saved operating system and boot files
will get corrupted as well, then the computer will report no boot device as well. So
you need to repair
corrupted interanl hard disk.
When the MBR (Master Boot Record) is corrupted, then the boot failure will also
happen. MBR sector is responsible for leading system to read necessary information
How to solve no boot device available Dell issue in Windows 10/8/7?
In order to fix such issue, you can try the following solutions, all of which are
proven to be effective, and could also apply for no boot device in Acer, HP, Asus and
other famous computer.
Method 1. Check and reset the boot order
First, you can check whether your boot order is correct in BIOS mode, and reset it if
Step 1. Turn on your computer and constantly press "F2/F10/Del" button to
enter BIOS mode.
Step 2. Use the arrow key on your keyboard to get "Boot" tab, change the
boot order setting to make your bootable disk on the top of the boot device
Step 3. Follow the instruction given to you in the BIOS utility to navigate to Exit
Step 4. Locate and choose the "Exit Saving Changes" option to save the
changes you have made.
Step 5. Follow the prompts to restart your computer.
Method 2. Check disk status and diagnose the problems
If the no boot device available issue is still unsolved after changing the boot
order, you can run CHKDSK to check the disks status and perform diagnosis.
To run CHKDSK, do as follow:
Step 1. Insert the original Windows disc, restart your computer and boot from the
Step 2. At the Windows 8/10 Welcome screen, click "Repair your computer->
Troubleshoot->Command Prompt". (In windows 7, click "Command Prompt"
under "System Recovery Options")
Step 3. When the Command Prompt window appears, type the command "chkdsk c: /f
/r /x" and press "Enter'.
The parameters for this command are:
c: stands for the drive you wish to examine or repair
/f attempts to fix any found errors
/r will locate for bad sectors and recovery any readable
/x will force the volume you’re about to check to be dismounted
before the utility begins to scan
Run the CHKDSK requires an original Windows disc. If you don’t have one, you can turn
to AOMEI Partition
Assistant Standard, with which you can create a bootable media, then boot
your computer from it and check whether there are some bad sectors.
Now do as the instruction below:
Step 1. make a bootable USB
1) Connect an empty USB (larger than 8GB) to a good working Windows
7/8/10 based-on computer, and download the
2) Install and launch AOMEI Partition Assistant, click on the Make
Bootable Media in the left pane. Follow the wizard to create a bootable USB disk.
When it is finished, disconnect the USB stick. (Note: AOMEI Partition Assistant
Standard is pre-installed on the bootable drive.)
Step 2. check and fix the disk error
Insert the bootable USB to the computer reporting no boot device available error,
power up it to enter BIOS and make the USB as the first boot device, and then
restart computer to Windows PE mode.
1) Once logged in, the AOMEI Partition Assistant Standard will load and start.
In the main interface, find the disk you want to check and right click one of its
partition, select "Advanced->Check Partition".
2) Select a way of checking disk error, the first one is recommended, which not
only checks the disk error, but also fixes it. And click "OK".
3) Wait for seconds, it will be done, and then click "OK".
Besides, it is also able to make a disk surface
test to make sure that your hard drives have no bad sectors.
Method 3. Rebuild MBR
Rebuilding your hard disk MBR sector is also an effective solution to troubleshooting
the boot failure problem. The AOMEI Partition Assistant can help you with this task,
Step 1. Restart your computer from the bootable media, run the software, right-click
the boot hard disk and select "Rebuild MBR".
Step 2. In the popped out mini windows, choose the proper MBR for your operating
system and click "OK".
Step 3. Click Apply->Proceed in the main interface to commit the change.
When it is done, you can unplug the bootable USB and restart your Dell computer now.
Note: since MBR is of great importance, and decides whether the system could boot up
normally and successfully, you can backup MBR just for an easy
recovery when it gets damaged someday.
Now, I bet you have a better understanding of why the no boot device available Dell
happens, what it means and how to fix this issue accordingly. It is self-evident
that AOMEI Partition Assistant is a really versatile freeware that provides several
different methods to repair “no bootable device found” issue.
If you want to experience more wonderful functions like migrating OS drive to SSD, erasing SSD
drive, allocating free space from other partitions to C drive when it is full, you
to AOMEI Partition Assistant Professional.