Most people with boot issues on Windows Operating Systems (OS) will choose to reinstall the OS rather than attempt to fix the boot issue itself. This particular article deals with running a repair of the EFI (Extensible Firmware Interface) bootloader on a GPT (GUID (Globally Unique Identifiers) Partition Table) Hard Disk Drive. If Windows falls to the internal disk, you’ll need to change boot priority to the installation disc in BIOS. Barcode wedge software pdf. If Shift + F10 combination does not work, try this approach with the installation disc. In Windows 10, Choose an option Troubleshoot Command Prompt; In Windows 7, Next System Recovery Options Command Prompt.
If you have Windows 7 boot problems, the boot sector or master boot record on your system partition may be damaged, corrupted, or has missing files. And you will receive an error message like the following before Windows actually begins to load.
Then, what are the boot sector and master boot record exactly?
What are the boot sector and master boot record?
The boot sector is a small section at the beginning of a hard drive. It's created when you format the hard drive.
The boot sector contains some code and data that helps BIOS hand off the startup process to Windows. It also hosts the Master Boot Record (MBR), which contains the disk signature, partition table for the disk, and a small bit of code called the master boot code.
When a PC starts, the BIOS will load the master boot code into the PC's RAM. Then it will scan the partition table, determine the active partition, load a copy of the boot sector into the PC's RAM, and hand off the startup process.
If you backup MBR in advance, you can use it to restore your computer and make it work as normal. If not, you can see the next part and learn to repair boot with command prompt in Windows 7.
Five efficient ways to run Windows 7 boot repairWay 1: Startup Repair with Windows installation media
If your boot sector or MBR runs into problems, you cannot start Windows normally. That's to say, you need a bootable media to boot your computer. You can choose to create the Windows installation media or create a repair disk on a working computer.
Start with the detailed steps:
Recover Windows 7 Boot Partition
Step 1. Create Windows 7 installation media on a working computer. You can download ISO image files from Microsoft Store and burn the ISO image files to a USB drive or CD/DVD via Windows 7 USB DVD download tool.
Step 2. Plug the USB drive into your computer.
Step 3. Start your computer and press the corresponding key to go to BIOS.
Step 4. Set boot priority to your drive in the Boot option.
Step 5. Restart your computer and press any key to boot from it.
Step 6. Wait for Windows 7 installation files to load.
Step 7. Click Repair your computer in the initial Windows installation screen.
Step 8. Select the operating system in the window and click Next.
Step 9. Select Startup Repair in the System Recovery Options and it will automatically start to repair boot sector or MBR in Windows 7. Just wait patiently until the process is completed and click Finish.
If the startup repair not working in Windows 7, you still can click View advanced options for system recovery and support in the last page and back to the System Recovery Options page. Then, try command prompt in Windows 7 to repair boot.
Way 2: Windows 7 boot repair from Command Prompt
Step 1. Click Command Prompt in the System Recovery options
Step 2. Fix MBR in Windows 7. You can type the following command and hit Enter.
bootrec /fixmbr
Note: This command can write a new Windows-compatible MBR based on the version of your Windows to the boot sector. And it does not overwrite the existing partition table.
Step 3. Repair boot sector in windows 7. You can type the command below and hit Enter.
bootrec /fixboot
Note: This command can write a new boot sector to the system partition. And it does not overwrite the current partition table. If you install multiple operating systems on this computer, you need to reconfigure the boot options.
Step 4. Fix bootmgr is missing in windows 7 via command prompt. You can type the below command and press Enter.
bootrec /scannos
Step 5. Rebuild your BCD and get the missing Windows installations back. You can type the following command and press Enter to run it.
bootrec /rebuildbcd
Step 6. Rebuild the boot sector for Windows. You can type the following command and press Enter to start it.
bootsect.exe /nt60 all /force
Notes:
Way 3: Repair boot sector in Windows 7
If the bootrec /fixmbr and bootrec /fixboot doesn’t work, you can try to restore the boot sector code of your Windows 7 with steps below.
Step 1. Go to Command Prompt in the System Recovery Options and then type the following commands to find the drive letter of your installation media. Just see “Type” column which contains the word “CD-ROM”.
Step 2. Take D: as an example and type commands below. If not, you can replace it.
step 3. Type bootsect /nt60 SYS /mbr and hit Enter to restore boot sector code.
Step 4. Remove the installation media and restart your computer.
Way 4: Rename and rebuild BCD via Command Prompt
If the above command prompt does not work for you, you still can try to backup and rename BCD first and then rebuild it via CMD.
Step 1. Select Command Prompt in the System Recovery Options and type bcdedit /export C:BCD_Backup command to create a backup for BCD.
Step 2. Type notepad in the command prompt and then click File > Open > Computer, find the file BCD in the corresponding drive, rename it as BCD.old, and then save the change and exit this window.
Step 3. Type bootrec /rebuildbcd in the command prompt window and input Yes when prompt.
Step 4. Type bcdedit /enum all in the window.
Step 5. Type exit and reboot your computer.
If you want to rebuild BCD without notepad, you can choose to type the following commands and hit Enter in order.
Note: c:refers to the location of your Windows.
Way 5: Windows 7 boot repair without disk
Step 1. Turn on your computer, press and hold the F8 key to go to the Advanced Boot Options screen, then choose Safe Mode with Command Prompt.
Step 2. You can try command prompt for Windows boot repair above and see if it works.
Extra tips for Windows 7 boot repair
1. Scan the integrity of your file system and hard drive and run Windows startup repair command prompt via chkdsk.
Aside by problem of boot sector itself, the physical problem of your hard drive can also damage the boot sector and MBR. Thus, you need to rule out this possibility.
2. Backup your computer with a free backup software.
No one dares to say that you can recover your computer all the time. Once the recovery fails, you can only reinstall your computer and all the apps. What's more, you will lose your files forever. Thus, you need to create a backup for your computer or files. With one or more backup in hand, you can restore it whatever happens. To backup your computer, you need a proper software. I recommend you AOMEI Backupper Standard.
With this software, you can backup system, disk, partition, even a single file. You can use email notification to get to know whether your backup is completed successfully or not. Also, you can create a Windows 7 schedule backup at an interval date, such as daily, weekly, monthly.
And you can manage backup disk space via Backup Scheme. But this feature is only available on the paid-version. If you want to free up disk space, you need to upgrade to AOMEI Backupper Professional. If you use server-based computer, you can directly download AOMEI Backupper Server edition.
If you want to protect unlimited PCs and servers within your company, you may choose AOMEI Backupper Technician Plus. It offers unlimited billable technical services to clients. It also enables you to copy installation directory for portable version creation.
To backup your computer, you can download the backup software and open it. Then, click Backup and select the Backup type in the list. At last, follow the corresponding article to finish the backup.
To restore your backup, you can click Restore and complete the rest of step via on-screen instructions.
If your computer cannot boot, you can create a bootable media on a working computer and boot the computer having trouble. Also, you can use PXE boot tool to boot the unbootable computer.
Summary
If you receive the above mentioned error message, the boor sector or MBR may be corrupted or damaged. You can use installation disk to run Startup Repair or do Windows 7 boot repair via Command Prompt.
If you can repair boot with command prompt in Windows 7, you are very luck. But, sometime, you will fail to repair startup issue. To ensure the security of your data and your computer, you'd better to create a backup in advance. With a backup in hand, you can restore it at any time.
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In this article, you'll find step-by-step methods to guide you fix computer UEFI boot errors in Windows 10/8/7. No matter you are a new Windows 10 insider user or a loyal Windows 8 or 7 fans, if you are having problems with UEFI boot on your PC, just relax. And you may directly follow offered steps below to fix UEFI boot in Windows 10/8/7 with ease now.
Method 1. Use Diskpart to Fix UEFI Boot Error in Windows 10/8/7
If you are a Windows 10 or 8 user and you prefer free methods to fix UEFI boot error, you may follow below two solutions to solve this issue now:
1 - Enter Command Prompt from Advanced options
Step 1: Insert Windows 10/8/7 installation disk or installation USB into PC > Boot from the disk or USB.
Step 2: Click Repair your computer or hit F8 at the Install now screen.
Step 3: Click Troubleshoot > Advanced options > Command Prompt.
2 - Run Diskpart to set partition ID and assign drive letter
Step 1: Type below command and hit Enter each time:
Step 2: When the message 'Disk 0 is now the selected disk' shows up, type: list vol and hit Enter.
Diskpart will now show the full list of volumes on your PC, find UEFI volume from the list: UEFI partition will be on Volume 2.
Step 3: Type below command and hit Enter each time:
Step 4: Assign drive letter by typing below command and click Enter:
3 - Repair the Boot Record
Boot System Restore Windows 7
4 - Rebuild the BDC Store
Step 1: Type each command line and hit Enter each time:
Free Windows 7 Repair Boot
Step 2: Type: exit in Command Prompt when the process completes and then restart your PC.
Now UEFI boot is fixed and Windows 10/8/7 can be boot up on your PC again.
Method 2. Use Automatic Repair to repair Windows 10/8/7 UEFI
Windows Automatic Repair is a built-in tool for users to apply and try to fix some normal errors on Windows PC. And you may also try this method to repair Windows 10, 8 or 7 UEFI/EFI boot error:
Rebuild Windows 7 Boot Partition Corrupt1- Boot up Windows from Installation mediaRebuild Windows 7 Boot Partition Repair
Step 1: Insert Windows 10/8/7 installation disk or USB to your PC.
Step 2: Restart PC and boot from the disk or USB.
2 - Enable Automatic Repair option
Step 1: Click Repair your computer at the Install now screen.
Step 2: Click Troubleshoot at Choose an option screen > Click Automatic Repair.
Step 3: Choose an account from the list to continue at the Automatic Repair screen and wait for the process to finish.
When the process completes, you can restart your PC and then you should be able to use your computer without any problems again.
Final WordFree Boot Disk Windows 7
UEFI boot error frequently occurs to Windows 10, 8 and some Windows 7 users. If you have come across such a problem, relax and follow the provided two methods on this page to get rid of this issue.
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