How To Repair Win 7 Pro To Boot In New Computer
Repair your computer and protect your data:
When need to perform Windows seven kicking repair via Command Prompt?
If you have Windows seven boot problems, the boot sector or master boot tape on your organisation division may be damaged, corrupted, or has missing files. And you lot volition receive an error message similar the post-obit before Windows really begins to load.
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Fault loading operating organization
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Missing operating system
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Reboot and select proper boot device
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Invalid sectionalisation tabular array
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Bootmgr is missing
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FATAL: No bootable medium found! Organisation halted.
Then, what are the boot sector and master boot record exactly?
The boot sector is a pocket-sized section at the kickoff of a hard drive. It's created when you format the hard drive.
The kick sector contains some code and data that helps BIOS hand off the startup procedure to Windows. Information technology also hosts the Chief Boot Tape (MBR), which contains the deejay signature, partition table for the deejay, and a minor scrap of lawmaking chosen the main kicking lawmaking.
When a PC starts, the BIOS will load the master kicking code into the PC's RAM. So it will scan the partition table, determine the active sectionalisation, load a copy of the kick sector into the PC's RAM, and mitt off the startup process.
If you backup MBR in advance, you can use it to restore your computer and make information technology work every bit normal. If not, yous can see the adjacent part and learn to repair kicking with command prompt in Windows 7.
Run Startup Repair outset with installation disc
If your boot sector or MBR runs into issues, you cannot start Windows commonly. That's to say, yous need the Windows installation disc to kick your computer. If you don't have, you can create system repair disc or recovery disk on a working computer. Then, allow'south get-go with detailed steps below.
Step 1. Create Windows vii installation media on a working computer. You can download ISO image files from Microsoft Store and burn down the ISO image files to a USB bulldoze or CD/DVD via Windows seven USB DVD download tool.
Step ii. Plug the USB bulldoze into your computer.
Step 3. Get-go your estimator and press the corresponding key to go to BIOS.
Step 4. Gear up boot priority to your drive in the Boot option.
Step 5. Save changes and restart your computer. So, you will see a blackness screen with fault message like "Press whatever key to boot from CD or DVD...", just printing a key in the keyboard. Later on that, it will start to load files, wait patiently.
Step 6. After that, you will go to the Install Windows screen, click Repair your computer.
Stride 7. Select the operating system Windows 7 in the System Recovery Options window and click Next. Sometimes, you will non see any operating arrangement in this window, please click Load Drivers to install drivers for your disks.
Pace 8. Select Startup Repair in the System Recovery Options and it will automatically start to repair boot sector or MBR in Windows seven. Just wait patiently until the process is completed and click Finish.
Boot Repair Windows 7 from Command Prompt
When y'all try to manually run Startup Repair using installation disc, you may observe startup repair not working sometimes and ask you to restore your computer with System Restore. Click Restore if you lot take a working restore point.
If not, click Cancel. So, y'all will see the Windows cannot repair your computer automatically screen with 2 options at the lower location, select "View advanced options for organization recovery and support". After that, you lot will go back to the Organization Recovery Options window and select Command Prompt to boot repair Windows 7.
Also, if you don't want to perform Startup Repair, yous can still open the command prompt window by pressing "Shift + F10" in the first Install Windows screen. Then, it will automatically pop up.
Wait a minute, delight tryWindows 7 startup repair command prompt chkdsk to scan the integrity of your file system and difficult drive then equally to rule out the physical problem of difficult bulldoze. Considering information technology can besides damage the boot sector and MBR. And then, effort other control lines below.
Fashion 1: Windows 7 boot repair with Bootrec
Pace ane. In the command prompt window, blazon the following control line and striking Enter afterward each 1.
- bootrec /fixmbr
- bootrec /fixboot
- bootrec /scannos
- bootrec /rebuildbcd
- bootsect.exe /nt60 all /force
Notes:
❤ The choice /fixmbris to fix MBR in Windows 7.
❤ The selection /fixboot is to repair boot sector in Windows 7.
❤ The option /scannos is to gear up bootmgr is missing in Windows seven control prompt.
❤ The choice /rebuildbcd is to rebuild your BCD and get the missing Windows installations back.
❤ Thebootsect.exe /nt60 all /force is to rebuild the boot sector for Windows. Among them:
>> The /nt60 parameter applies the master kick code that is compatible with BOOTMGR. The /all statement updates the master boot code on all partitions.
>> The /force parameter forcibly dismounts the volume(s) during the kick lawmaking update so that the Bootsect.exe tool does not gain sectional volume access.
Step 2. Exit the command prompt window and restart your computer.
Way 2: Repair kicking sector in Windows 7 using DiskPart
If the bootrec /fixmbr and bootrec /fixboot don't piece of work, yous tin can effort to restore the boot sector code of your Windows seven with steps beneath.
Stride 1. In the command prompt window, blazon the following command line in order and then striking Enter.
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diskpart
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select disk 0
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list book
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d:
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cd boot
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dir
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bootsect /nt60 SYS /mbr
Notes:
❤ The command line from diskpart to list book is to find the drive letter of the alphabet of your installation disc. Delight bank check the "Type" column which contains the word "CD-ROM", hither take D: equally an example.
❤ The command linebootsect /nt60 SYS /mbris to restore kicking sector code using installation disc.
Footstep 2. Remove the installation disc and restart your estimator.
Style 3: Rename and rebuild BCD via NotePad
If the above command prompt does not work for you, you all the same can effort to backup and rename BCD first and and so rebuild it via CMD.
Footstep ane. In the command prompt window, type bcdedit /export C:\BCD_Backupto create a backup for BCD.
Pace 2. Then, type notepad in the command prompt window. You lot volition meet a pop-upwards window, click File > Open > Computer,notice the BCD file and rename it every bit BCD.old. After that, relieve the change and go out this window.
Pace 3. Now, you will become back to the command prompt window. Blazon bootrec /rebuildbcd and hit Enter. Type Yes to ostend if yous asked.
Step 4. Type bcdedit /enum all in the window. Then, hitting Enter.
Step 5. Type leave and reboot your computer.
Way four: Rebuild BCD without notepad
Stride 1. In the command prompt window, type the command line beneath and hit Enter afterward each one.
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bcdedit /export C:\BCD_Backup
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c:
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cd boot
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attrib bcd -s -h -r
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ren c:\boot\bcd bcd.old
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bootrec /RebuildBcd
Notation: c: refers to the location of your Windows.
Stride 2. Exit the control prompt window and restart your computer.
Way 5: Kick repair Windows seven without disk
Footstep ane. Turn on your computer, press and concord the F8 key to go to the Avant-garde Boot Options screen, then choose Prophylactic Mode with Command Prompt.
Step ii. Yous can try command prompt for Windows 7 kicking repair above and come across if it works.
Useful tip: backup figurer to greatly reduce data losses
You never know when your computer will crash or become unbootable, thus information technology'south suggested to backup arrangement with a gratis backup software like AOMEI Backupper Standard. Hither are some advantages of it.
- It supports 4 fill-in solutions. Yous can backup system, disk, segmentation, or files per your needs.
- Information technology has 3 backup types. You can cull to create a full fill-in every time or backup merely changed files with incremental backup.
- It provides users with multiple schedule fill-in. Y'all tin fill-in on a regular basis, such every bit, daily, weekly, monthly. Likewise, with the help of the feature "Wake the calculator to run scheduled chore", it is able to wake your computer 2 minutes earlier the scheduled task starts.
- It supports Windows 11/10/8/7/XP/Vista.
In improver, its avant-garde edition has more useful features, such every bit, Result triggers, USB Plug in, differential backup, etc. For server users, you tin can directly download AOMEI Backupper Server edition.
For IT Technician, you could use AOMEI Backupper Technician. It allows you to create portable version of this software and use it on any calculator without installing it once again. Information technology'due south very convenient for It maintenance and support engineers.
To fill-in your computer, y'all tin can download the backup software and open up it. And so, click Backup,select Organization Backup and follow on-screen instructions to backup your computer. Also, you can choose other backup types.
And then, when something unexpected happens, you can go to the Restore tab and select the created prototype to restore system to new hard drive and so kicking from it.
Notes:
❤ If your calculator cannot boot, you can create a bootable media on a working reckoner and kick the computer having trouble. If you accept multiple computers, y'all could consider using PXE kick tool.
❤ If you restore system image to unlike computer with dissimilar hard drive, you need to enable "Universal Restore" feature. Information technology'due south available on the professional version of AOMEI Backupper.
Summary
If you receive the above mentioned error message, the boot sector or MBR may be corrupted or damaged. Y'all tin can use installation disk to run Startup Repair or kicking repair Windows 7 via Control Prompt.
If you can repair kick with command prompt in Windows 7, you lot are very lucky. But, sometimes, you will fail to repair startup event. To ensure the security of your information and your reckoner, you'd improve create a organisation backup or disk fill-in in advance. Then, you tin can restore system image or disk image in the event of a disaster.
Source: https://www.ubackup.com/windows-7/command-prompt-windows-7-boot-repair.html
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