How To Fix Boot Loader Windows 10

Whenever yous boot your laptop or desktop, does it open "Startup Repair" and flashes Error code=0x490, 0x2, 0x3.which goes something as -

If you are struggling to deal with this error, then you accept landed on the right page. Here nosotros'll assist you find the root cause behind this error and provide you lot quick solutions to set up it in Windows 7 and above.

• Part ane: Reasons why the Boot Manager fails to find the OS loader?
• Office 2: Ways to Fix Kicking Manager Failed to Find OS Loader
• Part 3: How to recover data from the unbootable computer if the above methods fail?

Part 1: Reasons why the Kick Manager fails to find the OS loader?

The flashing fault bulletin tells that Startup Repair is unable to discover the correct BOOTMGR bootloader at the expected location. This suggests that your desktop's bootloader is either corrupted or missing.

Hither are the reasons that are responsible for the error "Boot manager failed to detect OS loader"-

Reason one: The kick book is corrupted

If boot partition on your Windows PC corrupts, it tin can cause this fault message to flash. The file system present on kick loader tin can get corrupted:

• if there is a sudden power cut or arrangement crash
• unsafe removal of local or external drives
• dangerous shutdown
• if your reckoner's difficult deejay gets damaged physically.

Boot book can become corrupted on both NTFS and FAT32 partitions.

Reason 2: The Bootloader has been previously deleted

The BOOTMGR file installed on your estimator might go deleted due to viruses and other malware residing in your system. Whatever failed automatic update installation of Windows tin can flash error. Yet, it tin even exist due to a failed attempt at upgrading the operating system.

Windows Vista, Windows 7, eight, and 8.1—all use the new BOOTMGR bootloader.

To cheque if the bootloader is not deleted from your calculator system, look for the BOOTMGR file in the root partitioning of your Windows installation drive. For Windows and Vista users information technology is generally the drive C:\.

For Windows 7 and above, you will find BOOTMGR located on a separate 100 MiB NTFS partition. It might exist created at the beginning of your drive when you initially set up the desktop.

Reason 3: The reckoner's hd has been removed

This error can also occur if you might take removed or replaced one or more, hard disks on your reckoner.

Does your removed or replaced hard disk was the first boot device in the BIOS? So probably the boot files would have been already installed to this bulldoze.

Therefore, to avoid fault it's utterly of import to ensure that the boot files have already been moved to a different drive. Ensure this before y'all plan to replace a boot disk on your computer.

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Part 2: Means to Fix Boot Manager Failed to Find Os Loader

Hither we'll provide you stride-past-step basic solutions, to ensure that you can fix this error on your computers without whatever additional harm.

Solution 1: Employ 1 of the Window'southward congenital-in tools—the Organization File Checker

Yous tin choose to run System File Checker (SFC) to check and fix your Windows (except Vista) for any corrupt or deleted files. For this, yous require a Windows Installation disk. The following steps volition allow you to attempt a repair of your PC-

Step ane: Insert the installation disc of Windows into your computer's CD-ROM drive and then restart your system.

Stride 2: Press central when you see this message on the screen - "Press any cardinal to boot from CD or DVD." Choose the option - language and keyboard.

Footstep 3: Click the link "Repair your reckoner."

Step 4: Go to Troubleshoot -> Advanced options and so to Command Prompt to continue.

Step 5: At present enter the command: sfc /scannow /offbootdir=C:\ /offwindir=C:\Windows in control line window to check for errors and tap Enter (Hither C is your bulldoze where your Windows are installed)

Step half-dozen: Finally, reboot your system and bank check if the "boot manager failed to find Bone loader" error has been fixed.

Solution 2: Try to fix possible bad sector or errors on the system bulldoze

The mistake Kicking manager failed to find OS loader can also occur if there are bad sectors on your hard bulldoze.

Step 1: To repair any bad sectors, go to Command Prompt post-obit steps in solution 1.

Step 2: Then enter chkdsk d: /f /r command (d: is system segmentation) in Command Prompt, and hit Enter to go on.

Footstep iii: Now reboot your estimator to bank check if the error has been fixed.

Solution 3: Attempt rebuilding the BCD, MBR, and boot sector

To fix bug with the BOOTMGR bootloader, you might have to rebuild your computer'due south MBR (Master Boot Record), BCD (boot configuration information), and partition boot sectors.

If you accept Windows installation disc, then follow below steps-

Step 1: Insert the Windows installation disc into your computer'due south CD-ROM bulldoze.

Step 2: Now refer solution 1 to reach Command Prompt.

Step 3: Blazon below commands in the command line and tap Enter afterwards every command-

bootrec.exe /fixmbr
bootrec.exe /fixboot
bootrec.exe /rebuildbcd

Stride 4: Now reboot and bank check if the BCD repair tool has fixed the error.

Nevertheless, if rebuilding BCD fails to accost the error, you can try exporting, deleting, and running BCD once again. But before entering commands you first demand to ensure that BCD has been completely rebuilt. Now type below commands and tap Enter after every command-

bcdedit /export C:\BCD_Backup
c:
cd kick
attrib bcd -s -h -r
ren c:\boot\bcd bcd.old
bootrec /RebuildBcd

Reboot and cheque if information technology has fixed the error.

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Part 3: How to recover information from the unbootable computer if the above methods fail?

In that location are times when your Windows might malfunction and all the above-mentioned solutions are tossed into the bin. Various reasons can make computers unbootable. These include overheated motherboard, a virus or malware attack, hardware-problems, BIOS settings, etc.

Download and install the data recovery software Recoverit on your system and follow the given steps-

Step 1: Select Recovery Mode

Launch Recoverit then from the given options select - "System Crash Data Recovery." Tap on "Beginning."

Step ii: Create Bootable Drive

Select the bootable drive USB or CD/DVD appropriately. Click "Create" and then "Format at present" to ostend. For this step, yous must accept a back upwards of your data.

Do not eject your continued USB flash drive when information technology will now start creating a bootable drive.

Step 3: Recover data

After it has created the bootable bulldoze, you will see iii elementary steps about information recovery on the screen. To conform the boot sequence, check out how to set the estimator to boot from a USB drive

And so Recoverit will launch automatically after booting from the USB drive. Cull a data recovery way to recover your data.

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Conclusion

Now you lot will panic a fiddling less whenever "Boot Manager failed to find OS loader" mistake will flash on your screen considering you now know what may have caused it. Y'all are besides at present familiar with methods to fix the mistake. Also, if these ways fail, you are now acquainted with another method of recovering information from the unbootable computer besides.

Source: https://recoverit.wondershare.com/computer-problems/how-to-fix-boot-manager-failed-to-find-os-loader.html

Posted by: buttontintles.blogspot.com

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