I got a brand new Dell computer with a HDD and Windows 10 pre-installed. Since the
SSD drive has a better performance than HDD, so I swap the HDD for a SSD before
booting the Dell computer. Then I try to do a factory reset with the Windows 10
disc, it informed me that unable to reset your pc a required drive partition is
missing. I have no idea what I’m facing for, any help would be appreciated.
I bought a Dell 7353 laptop with Windows 10 preinstalled, but I want to run something
other than Windows 10, so I removed the existing factory partitions using the
DiskPart clean command. Then I found the OS I want to installed has no drivers to
assist the 7353 hardware. Then I download the Dell Recovery Image and enable to boot
from it, but it can’t be installed due to the “unable to reset your computer, a
required drive partition is missing” error.
Why the “a required drive partition is missing” message occurs to your Windows 10
computer, the corrupt MBR or BCD file should take responsible for this problem.
Apart from the above situations, you may have encountered this condition. When you
start your Windows 10 computer, and received a “Your PC needs to be repaired” error
message. The first thing you would do is try to refresh your PC, if you do so,
you’ll probably receive a “The drive where Windows is installed is locked” message.
If you try to reset your PC, you may get an error message saying “Unable to reset
your PC. A required drive partition is missing”.
The culprit causing these problems is a damaged MBR or BCD file usually.
Two Solutions for A Required Drive Partition Is Missing in Windows 10
Thus, how to fix this problem? As a matter of fact, you have two ways to solve:
Command Prompt and AOMEI Partition Assistant.
Solution 1: Fix with Command Prompt
To fix Windows 10 a required drive partition is missing error, you have to correct
the MBR or BCD file. The first thing you need is a Windows 10 installation DVD or
USB flash drive.
Step 1: Insert the Windows 10 installation DVD or USB flash drive
into your computer.
Step 2: Boot into Windows 10 system recovery options, select
“Troubleshoot”> “Advanced options”>“Command Prompt”.
Step 3: Then use command prompt to fix a required drive partition is
missing in Windows 10 issue. Then enter the following command in turn.
Then reboot your computer to see if the issue is fixed. The command prompt should
solve your problem.
Solution 2: Rebuild MBR with AOMEI Partition Assistant
Another reliable way to fix this problem is taking advantage of AOMEI Partition Assistant to Rebuild Master Boot Record (MBR). AOMEI
Partition Assistant is a powerful disk partitioning software, which makes you
rebuild MBR easily, as well as compatible with Windows Vista, XP, 7, 8, 8.1,10.
Step 1: Download, install and
launch AOMEI Partition Assistant. On the main interface, right click the system hard
disk, then select “Rebuild MBR” at the drop down menu. Or select the system hard
drive, and then choose “Rebuild MBR” at the left panel.
Step 2: Set the type of MBR for your Windows 10, then press “OK” to
Step 3: Overview the result of rebuilding MBR at the “Pending
Operations”, then press “Apply” to take effect.
Tips: Please rest assured, the process of rebuilding MBR doesn’t
cause data loss.
Wait for a moment, you’ll find the problem a required drive partition is missing in
Windows 10 has been repaired. In addition, AOMEI Partition Assistant also allows you
to make bootable media to
troubleshoot the Windows 10 cannot boot problems and fix unbootable issues caused by