My HP laptop says BOOTMGR is missing
“My HP Pavilion laptop, with Windows 10 installed on, was always running smoothly.
But today, I failed to boot it successfully with error message saying BOOTMGR is
missing Press Ctrl+Alt+Del to restart. What’s wrong with my HP computer? How can I
fix HP Pavilion BOOTMGR is missing problem and boot it successfully? Any suggestion
will be appreciated!”
Possible causes of “BOOTMGR is missing” in HP computer
BOOTMGR, a file named Windows Boot Manager, which is located on System Reserved
partition or system partition. BOOTMGR can read Boot Configuration Data and execute
the winload.exe to help system start.
In general, BOOTMGR is missing error can a
result of inappropriate boot sequence, outdated BIOS, damaged master boot record
(MBR), corrupted boot sector, upgrade issues or connection issue.
Effective ways to fix HP BOOTMGR is missing problem
After having a basic understanding on why HP BOOTMGR is missing in Windows 10, it is
time to learn the solutions presented in the next part.
Solution 1：Reboot your computer
When you are bothered by BOOGMGR missing problem in Windows 10 mentioned above, you
can press CTRL +ALT+ DELETE to reboot your computer. Sometimes, your computer might
be get out of this error by itself. If not, it is time to take more advanced
Solution 2. Adjust the boot sequence correctly
When your HP laptop or desktop is connected with external hard drive like USB flash
drive, external hard drive, etc and your boot your computer from such device that
without OS installed on, you can receive BOOTMGR is missing message. At this time,
you can restart your computer and enter BIOS on startup to set the disk that
contains operating system as the first option for booting. Then, you can check
whether your computer boot normally.
Solution 3. Upgrade BIOS version
BOOTMGR Missing in Windows 10 might be a result of out-dated BIOS. If so, you need to
upgrade the BIOS to the latest version. You can download the current BIOS from the
manufacturer website on a working computer to a bootable device; then you can
install the current BIOS from the bootable device. Finally, you can reboot your
computer to check whether the problem is solved.
Solution 4. Fix boot failure automatically via Startup Repair
If you still unable to boot your computer normally, you can use Windows Startup
Repair to fix BOOTMGR is missing issue in HP computer. Here are detailed steps：
1. Turn down your computer. Insert the Windows installation disc into your computer
and enter BIOS to boot computer from Windows installation disc.
2. Waiting for the Windows Install now screen. When it shows up, click Repair your
computer at the lower-left corner on the screen.
3. Go to Troubleshoot>Advanced options > Startup
As the repair process can be long, thus to wait patiently and so not abort the
process. After Startup Repair, you can try to boot your computer normally.
Solution 5. Run Bootrec commands to fix BOOTMGR missing
If Windows Startup Repair not working, you can try to fix BOOTMGR missing issue by
running Bootrec commands. Have a look at detailed steps:
1. Boot your computer from Windows Installation disc and go to Repair your
computer>Troubleshoot >Advanced options >Command
2. In the Command Prompt window, type the following commands and every command shall
be followed by pressing Enter key:
3. Type exit and hit Enter to leave the Command Prompt and reboot computer to see if
the error appears again.
Solution 6. Rebuild MBR without Windows Installation disc
If you are without Windows Installation disc, you can turn to AOMEI Partition Assistant Standard to fix MRB to
settle this issue. Let’s see how to rebuild MBR simply and effectively.
First of all, you should download AOMEI Partition
Assistant and use it to create a bootable USB or CD/DVD. Then, boot your computer from the bootable media and
follow the steps given below:
1. Connect the bootable media created by AOMEI partition Assistant to the computer
that you need to fix MBR and boot your computer from it.
2. You’ll be in the main interface of AOMEI Partition Assistant. Locate the system
disk, right click it and choose “Rebuild MBR”.
3. Choose the type of MBR for the current operating system.
4. Confirm operation and click “Apply”>“Proceed” to execute it.
PS.: AOMEI Partition Assistant Standard also supports you to check bad sectors on hard drive. If you upgrade it to Professional version, you can enjoy more functions like migrating OS from MBR to GPT disk, recovering deleted or lost partition and so on.
It’s bothering to meet BOOTMGR is missing problem in HP or other computers like
Lenovo or Dell. But don’t worry and you are able to solve this issue with the one or
more solutions aforementioned successfully.