How Do I Repair A Missing Disk Partition Using Cmd

On this page, we'll explain what causes Windows unable to reset your PC, and how to fix this effect without losing any information, and enable you to reset your PC successfully.

Follow the effective solutions here to set the "Cannot reset PC" error to unlock the drive to reset your reckoner without losing any information:

Applies to: Fix "Unable to Reset Your PC" error in Windows 10/eight.1/8/7, etc. without losing whatever information.

Error: Unable to Reset Your PC

"I'chiliad trying to reset my PC, but when I do information technology using a USB drive, made with the media cosmos tool, I get the mistake: Unable to Reset PC. A required bulldoze partition is missing."

Don't worry if you happen to meet this issue on your figurer while trying to reset your PC in Windows 10/8/7. Hither below, we'll guide you to learn what causes this event and and then listing the respective solutions for each cause, and last, aid yous successfully reset your PC without losing whatsoever information.

Causes of "Unable to Reset Your PC. A Required Drive Partition Is Missing" Error

Apart from the missing bulldoze partition error, there is another similar and common error that disallows yous from resetting the PC, which is "the drive where Windows is installed is locked".

What practise these errors suggest? And how do they come? 'A required drive sectionalization is missing' usually prompts when yous're trying to perform a system reset or install a fresh version of Windows ten/8/7. This error message may appear due to:

The MBR (Chief Boot Record) or BCD (Boot Configuration) has corrupted
There is something wrong with your reckoner disks
You system files are missing or damaged
As the error indicates, a required drive partition is missing

The solutions vary depending on the specific causes. The corresponding fix for each cause has been provided beneath.

Workable Solutions	Pace-past-step Troubleshooting
Fix i. Run Bootrec.exe	Insert Windows installation disk (DVD) or a bootable USB drive into your computer...Full steps
Prepare 2. Rebuild MBR	Run EaseUS partition software > Correct-click C bulldoze and select "Rebuild MBR"...Total steps
Set up iii. Run SFC	Restart your PC. When your Windows boots up, repeatedly press...Full steps
Ready 4. Prepare System Segmentation Active	Run PC from installation media, use control line to set organisation partition every bit active...Full steps

Office 1. Recover Data from Missing Partition and Back Up Important Files

Applies to: Protect your data from beingness removed or deleted due to resetting PC.

 Important: According to EaseUS data recovery experts, resetting PC may cause unexpected data loss effect and information technology's not brash to do so.

If you want to reset PC regardless of the fact that you've failed with the 'a required drive partition is missing' error, please make sure that y'all've followed the ii grooming jobs as listed in this part.

#i. Recover Data from the Missing Partition

To avoid further information loss when you failed to reset Windows ten/8/7, EaseUS data recovery experts advise that you check which partition is missing on your PC and use reliable data recovery software to bring back the missing files outset.

Here, y'all may try EaseUS Information Recovery Wizard - your reliable pick for division data recovery. It volition fully scan the missing partitioning and discover all lost data in quick scan and deep scan modes.

What's more than, it enables all Windows uses to recover lost files from the missing partition in only 3 steps:

Note: To guarantee a high data recovery chance, install EaseUS data recovery software on another disk instead of the original disk where you lost files.

Step 1. Launch EaseUS Data Recovery Magician on your Windows 11, Windows x, Windows 8, or Windows 7 figurer. Select the deejay partitioning or storage location where you lost data and click "Scan".

select the disk on Windows to scan

Step 2. This recovery software will start scanning the disk to find all lost and deleted files. When the scan process completes, click "Filter" > "Type" to specify lost file types.

choose the recovered data type

Step three. Preview and restore lost Windows files. You lot can double-click to preview the scanned files. Then, select the target information and click the "Recover" button to salve them to another safe spot in the PC or an external storage device.

recover windows 10 lost data

#2. Dorsum Up Important Files Before Resetting PC

As for resetting your PC will delete your files, settings, and apps, except for the apps that came with your computer, information technology's likewise recommended that you create a backup of all of import data on your reckoner to an external storage device.

In that location are ii ways that you can try to support your figurer information:

1. Manually copy and paste files to an external hard drive. (Time-consuming)

2. Back up all data to an external difficult drive at one fourth dimension with reliable file backup software. (Fast & Efficient)

To save your time and energy, we suggest you apply file backup software like EaseUS Todo Backup for assistance. It'southward fast in backing up data and taking smaller space on your external difficult drive.

Part 2. Fix "Unable to reset your PC. A required drive partition is missing" Error

Applies to:Fix "Unable to reset your PC. A required drive sectionalization is missing" error in Windows 10/8/seven, Windows 10 reset failed, etc.

Here in this office, we've collected * practical solutions to help you go rid of "Unable to reset PC" error based on the listed causes at the beginner of this page:

#ane. Run Bootrec Command to Rebuild BCD
#2. Repair Corrupted MBR
#3. Run SFC
#4. Fix System Partition as Active
#5. Run CHKDSK
#vi. Perform System Restore

If you are not sure about the reasons why the error occurs, you can try the solutions below in society.

Method 1. Run Bootrec.exe

Bootrec, as well called bootrec.exe utility, is a tool provided by Microsoft in the Windows Recovery Environs. Bootrec.exe tin can be used to fix the Master Boot Record (MBR), Kick Sector, Boot Configuration (BCD), and boot.ini.

If information technology'southward the decadent MBR or BCD that caused "Reset PC failed" issue, the solution is to right the MBR or BCD record with the assist of bootrec.

By the way, running bootrec.exe is besides helpful in solving the "Windows is loading files" loop. Here are the steps:

Pace ane. Insert Windows installation disk (DVD) or a bootable USB bulldoze into your computer.

Step 2. Restart PC and press the "F2/F12/Del" key to bring up the boot carte.

Step 3. Select either the DVD or the USB disk from the boot menu.

Wait for the computer to boot into the Windows Installation or Recovery DVD.

Footstep 4. Select "Install Windows" from the screen that appears and and then select "Repair" your figurer.

Step five. From the repair bill of fare, select "Troubleshoot" > "Advanced Options" > "Command Prompt".

Open Command Prompt to run command line to repair BCD

Footstep half-dozen. In the command prompt that opens, issue the post-obit control ane past ane:

bootrec /fixmbr
bootrec /fixboot
attrib C:\Kick\BCD -h -r -s ren
C:\Boot\BCD C:\Boot\BCD.bak
bootrec /rebuildbcd

Method 2. Rebuild MBR

When the MBR is corrupted on a specific sectionalisation, Windows may not allow you to reset the estimator. To fix this error, you'll need a powerful calculator direction tool to rebuild the corrupted MBR.

Here, reliable division manager software - EaseUS Partition Master with its "Rebuild MBR" feature can assistance.

Step ane. Create a WinPE bootable disk

Launch EaseUS Partition Master, click "WinPE Creator" on the toolbar. Select to create the bootable disk on a USB drive. If your reckoner has a CD/DVD drive, you lot can also create the bootable disk to CD/DVD.
Click "Go along" to finish the process.

create a bootable disk

Pace 2.Boot EaseUS Division Master Bootable USB

Connect the bootable USB or CD/DVD to your PC.
Press F2 or Del when you restart the computer to enter the BIOS screen. Set and boot your figurer from "Removable Devices" or "CD-ROM Drive". And so EaseUS Partition Master will run automatically.

rebuild MBR

Stride 3. Rebuild MBR

Right-click the deejay whose MBR is damaged. Choose "Rebuild MBR" to keep.
Select the type of MBR with the current operating system. Then, click "OK".

rebuild MBR

Click the "Execute Performance" button at the top-left corner and click "Utilize" to build the MBR. After that, your figurer tin kick commonly again.

rebuild MBR

Method 3. Run SFC (System File Checker)

The mistake "Unable to Reset PC. A required drive division is missing." may also happen due to missing or corrupted system files.

To your relieve, the Windows Arrangement File Checker tool is able to repair missing or corrupted organisation files for you.

Here are the steps to run the tool:

Step 1. Press Windows + Ten keys, click Search and blazon cmd in the search box.

Step 2. Right-click onCommand Prompt and select "Run every bit Ambassador".

Stride 3. Blazon the sfc command to repair the missing or corrupted system files that causing "Unable to reset PC" error and hit Enter: sfc /scannow

Run SFC command to fix unable to reset PC error

Method 4. Set System Partition as Agile

Simply ane partition tin can be designated equally "Active" and that should be your system partition. If you lot have assigned the active partition wrongly, your PC won't boot and y'all may run across the error message proverb, "Unable to reset your PC. A required drive partitioning is missing".

To set your system partition as active, you'll need to boot your PC up from a Windows installation disk fist, and then enter Control Prompt and use some control lines to set the system partition every bit active. Here are these steps:

Step one. Insert Windows installation disk (DVD) into your PC and restart the computer.

Step 2. Press the "F2/F12/Del" key to enter the BIOS kicking bill of fare.

Step 3. Select the Windows installation USB or the DVD equally the boot drive from the boot menu.

Step 4. Reboot PC and wait for the computer to kick into the Windows Installation or Recovery DVD.

Step 5. When "Install Windows" screen appears, select "Repair" your figurer.

Footstep 6. From the repair bill of fare, select "Troubleshoot" > "Advanced Options" > "Command Prompt".

Pace 7. Type the following command lines and hit Enter each fourth dimension to prepare "Unable to Reset PC" mistake:

diskpart
list disk
select disk 0 (the disk contains your organization segmentation)
list partition
select segmentation 0 (the system partition)
active
exit

Method 5. Run CHKDSK

Disk errors can as well result in the event "Unable to Reset PC. A required drive partition is missing." Fortunately, CHKDSK can exist used to check and repair your disk errors similar file system errors or bad sectors.

According to some users, running CHKDSK to fix corrupted file system may outcome some file loss. Don't worry if yous have encountered the same issue. EaseUS Data Recovery Sorcerer is able to help.

Hither are the steps:

Step 1. Repeat Step 1 to Step 6 (as shown in Method 1 or Method 4) to boot your PC from the installation media.

Step 2. Cull to repair your computer.

Bring up system restore window when unable to reset PC.

Step iv. Click "Troubleshoot" > "Advanced Option" > Select "Command Prompt".

Stride v. Blazon the control line chkdsk c: /f and hit Enter.

If this don't work, type chkdsk C: /f /x /r and hit Enter. (Replace "c" with the drive letter of the volume you want to cheque).

Method 6. Perform Organization Restore

If the higher up five methods above all failed to set the error "Unable to Reset PC. A required drive partition is missing.", your final option is to restore your organisation to an before point.

To exercise so, yous still need the assist of using Windows installation USB or DVD for help:

Step one. Insert Windows installation USB and resart PC.

Stride 2. Enter BIOS and set PC to boot from Windows installation media USB.

Step 3. On Windows Install window, select "Repair your figurer".

Stride 4. Select "Troubleshoot" > "Avant-garde Options" > "System Restore".

Step 5. Choose a previous working state (data) to restore to your computer.

Select system restore point

Stride 6. Wait until Windows Restores your system. Then restart your calculator.

After this, your computer is now running with a previou salubrious version of Windows. Everything will work normally, and so to the "Reset PC" operation.

Part three. How to Reset Your PC After Fixing "Unable to Reset PC" Fault

If you lot still want to reset your estimator after fixing "Unable to reset your PC. A required partition is missing" mistake, follow the steps hither ane past one, you'll successfully reset the computer on your own:

Important: To avoid unecessary data loss due to resetting PC, nosotros propose you Backup Files Before Mill Reset PC in accelerate.

Here's how to reset your Laptop/PC in Windows x/eight/seven hands:

Step one. Right-click Get-go or Windows icon, select "Settings > "Update & security" > "Recovery" > "Reset this PC" > "Go started".

reset windows 10 step 1

Footstep 2. Click either "Continue my files" or "Remove everything".

If you didn't back upwards whatsoever data, select "Keep my files" to proceed your information files intact.

In either fashion, all of your settings will render to their defaults and apps volition be uninstalled.

keep my files or remove everything

Pace 3. If you chose "Remove everything" in the prior step, select "simply the drive where Windows is installed" or "All drives"

factory reset windows 10 step 3

Step 4. Select "Remove files and clean the drive" if you are going to sale the computer. The side by side user tin can't recover your erased files.

If you'll conitnue using the reckoner, choose "Just remove my files."

factory reset windows 10 step 4

Step v. Click "Reset" when prompted.

Windows will then restart and accept 20 minutes or longer time to reset itself.

clcik reset to start the factory reset process

Await patiently till the whole process completes and your reckoner successfully restarts. If the computer works fine, yous can restore the fill-in data to a data bulldoze to brand utilize of them once again.

The Lesser Line

Sometimes, you lot may need to reset PC when at that place are serious issues on your computer. Don't worry if you encountered the error "Unable to Reset PC. A required drive sectionalisation is missing" during the setting PC procedure. To address this upshot, we suggest you restore lost data from the missing partition with the assistance of EaseUS data recovery software.

Then, you tin can effort the six practical methods every bit shown above to fix the trouble successfully without losing whatever information. When you are done with this error, you tin proceed resetting the computer, making it work normally again. Once once again, remember to back up your precious files with free backup software earlier the operation.