Scenario
Hello there, I have a question about my hard drive not recognized that the default boot device missing.
When I try to use Windows Diskpart to list disk, I was told there are no fixed disk
to show -
Diskpart> list disk
There are no fixed disks to show
Diskpart> sel disk 0
The disk you specified is not valid
There is no disk selected.

Is there anybody have met the same problem or anyone who knows how to solve this kind
of problem? Any help would be appreciated in advance!
What should you do when “There are no fixed disks to show” happened?
There are so many reasons would cause the problem that Diskpart there are no fixed
disks to show Windows 10/8/7. It may be caused by the connection between hard drive and computer, or a hardware issue, or others. When the problem occurs, you can do reconnect the hard drive to the computer, and restart the computer to check whether
the problem has been solved. If it still existing, you can do as the following steps to try to fix it.
→ 1. Perform Windows Startup Repair
→ 2. Repair Startup using Commands
→ 3. Rebuild MBR With hard disk manager
→ 4. Test hard drive
1. Perform Windows Startup Repair
When the bad things happen, you can try to perform Windows Startup Repair and check
if it helps.
1> Insert the Windows installation DVD in the DVD ROM and restart your
computer.
2> After you boot the computer using Windows DVD, a black screen appears with
gray text "Press any key to boot from CD or DVD". Press any key.
3> Select the correct time and Keyboard type.
4> Click on Repair your computer in the lower-left corner.
5> Select Troubleshoot from Choose an option screen.
6> Click Advanced options in Troubleshoot screen.
7> Click Startup Repair from Advanced Options screen.
8> Next, choose the operating system by clicking on its button.
9> Windows will look for problems on hard drives and verify that all required
files are intact.
After that, you can restart your PC and see whether the problem has been solved.
2. Repair Startup using Commands
If the automatic repair doesn’t help to repair the startup files, you may try to
repair them using those commands through Command Prompt.
1> After you boot your computer using Windows 10 DVD or System Repair
Disc, a black screen appears with gray text "Press any key to boot from CD or
DVD". Press any key.
2> Select the correct time and Keyboard type.
3> Click Repair your computer in the lower-left corner.
4> Select Troubleshoot from Choose an option screen.
5> Click Advanced Options in Troubleshoot screen.
6> Click on Command Prompt.
7> Type these following commands and hit enter after each line of
command:
● Bootrec /fixmbr
● Bootrec /fixboot
● Bootrec /scanos
● Bootrec /rebuildbcd
After that, you can restart your PC to see whether the problem there are no fixed
disks to show is still exiting.
3. Rebuild MBR With hard disk manager
If you do not have a Windows installation disc, you can turn to the third-party
software to solve the problem. The AOMEI Partition Assistant Standard should be the best freeware for rebuilding MBR
(master boot record). Before that, you need to prepare for it:
1> A normal Windows PC installed Windows 10/8/7/Vista/XP, then free download AOMEI Partition Assistant from
its official site.
2> A 32 GB USB drive.
3> Plug into the USB drive to the Windows PC installed AOMEI Partition
Assistant, make sure it can be detected. And then, launch AOMEI Partition Assistant
to create a bootable USB drive, so
that you can use it to boot the PC which gave you “There are no fix disks to show” error
message.
After that, you can start to use AOMEI Partition Assistant for
rebuilding MBR and get out of the hard drive cannot be seen.
Step 1. Shut down your computer with the error message there are no
fixed disks to show. Plug in the bootable USB drive you created before, and then,
boot your computer from the bootable USB drive. You may need to change the boot order in BIOS.
Step 2. After that, you will boot into AOMEI Partition Assistant’s
main interface. Here will display all drives on the computer. Select the system
disk, right-click it, and then select Rebuild MBR in the
drop-down menu.

Step 3. It will pop-up a new window. Choose the type of MBR for the
current operating system, click OK.

Step 4. Finally, clickApply -> Proceed to submit the
whole operation.

After that, disconnect the USB drive and restart your computer, and it should be
worked.
4. Test hard drive
If the rebuild MBR still cannot solve there are no fixed disks to show problem, you
need to consider whether there are errors on the physical hard drive. Then, you can
use AOMEI Partition Assistant to test your hard drive.
Step 1. Connect the hard drive to a workable Windows PC or use the
bootable USB drive to boot the unbootable Windows. In the main interface of AOMEI
Partition Assistant, right-click the hard drive, and select Surface
Test.

Step 2. You can do a quick check for every sector on the hard drive.
If the sector is damaged, it will be marked as a red box. Check the option of Quick Check, and click Start.

If it is because of the physical damage on the hard disk, you’d better change a new
hard drive.
Conclusion
When you get the error - there are no fixed disks to show SSD/HDD, don’t be panic and
you can try those methods we mentioned to get out of the problem. And AOMEI Partition can not only help you rebuild MBR, test hard drive, but can also help you check for and fix partition errors.
If you upgrade to Professional Edition, you can get more
advanced features, like cloning GPT system disk, migrating OS to GPT disk, etc., to help you solve more hard disk partition problems. AOMEI Partition Assistant Professional edition and Standard edition is designed for
Windows PC users. If you are using Windows Server 2003, 2008, 2012, 2016, please try AOMEI Partition Assistant Server edition.