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Solved: Windows Boot Manager - Error Code 0xc000000f 4 years 9 weeks ago

Normally Windows operating system boots according to the following sequence:
1. BIOS loads the MBR, verifies 55 AA signature and transfers control to Master Boot Record.
2. MBR scans the partition table for active partition, then it loads the first sector from active partition, verifies 55 AA signature, and transfers control to Boot Sector.
3. Boot Sector loads 15 additional sectors from the start of the disk (Volume Boot Record) and transfers control to first additional sector of VBR.
4. VBR loads BOOTMGR file from root directory of boot partition into the memory and transfers control to it.

Quick Repair Corrupted MBR with MiniTool Partition Wizard 3 years 35 weeks ago

As you know, MBR is the master boot record on the hard drive in your computer. It is always created in your first partition, and it is very important for your hard drive. MBR contains the executable codes for the computer boot, which always locates in the first sector of your disk. If your disk MBR gets corrupted, the operating system will fail to boot.

Usually, when system is unable to boot, you can get some error messages or information, such as “A Disk Read Error Occurred”, “Operating System not found” or “missing operating system”. In these cases, you should consider that the master boot record is damaged. Why does MBR get corrupted? Generally speaking, there are some reasons, including virus infection, mistaken operation or sudden power failure.

How to Fix MBR for Windows 8 When Operating System Cannot Boot 4 years 25 weeks ago

MBR is the master boot record of a hard disk. It is created on the first partition when you first install Windows. MBR consists of three parts, i.e. Boot Loader, Partition Table and Magic Number. Boot loader is a program that loads an operating system when a computer is turned on. Partition table records partition information on local disks. Magic number(0xAA55/0x55AA) marks the device as a valid bootable media. An invalid magic number indicates a corrupted or missing MBR. Master Boot Sector contains 512 bytes in total, of which the boot loader takes up 446 bytes, partition table 64 bytes, and magic number 2 bytes. If the MBR is damaged, you won’t be able to boot into Windows.

LOOK! How to Recover Damaged Master Boot Record with Two Methods 1 year 34 weeks ago

After performing a mistaken operation or suffering virus attack, users may receive the message "Operating system not found" when they restart the computer. That is mostly because MBR has been damaged. Well then, how to free recover damaged master boot record when Windows cannot boot? In this article, I will introduce you a free MBR repair tool and a great MBR repair software for you to repair MBR.

The Best Way to Fix MBR for Free in Windows 10/8/7/XP/Vista 3 years 49 weeks ago

MBR is the abbreviation for Master Boot Record which is a special boot sector in the beginning of the hard drive. That is to say, it is created on the first partition on the disk. MBR describes the information of logical partition, including file system and organization mode. In addition, it contains three parts which are boot loader, DPT (Disk Partition table) and magic number. Thereinto, the first part owns 446 bytes, DPT has 64 bytes, and magic number contains 2 bytes. MBR does not belong to any operating system. And it can’t be read by using disk operation command but it is able to be modified and rewritten.

How to Recover Files When PC Won’t Boot 2 years 46 weeks ago

My PC cannot boot, although there is enough power? In this situation, what should I Do? Can I recover data when PC won’t boot? What’s more, is it possible to recover lost data from dead PC without damaging the original data?

In general, PC won’t boot is a common symptom. And, there are many reasons which can cause the PC won’t boot issue. For instance, NTLDR is missing, operating system is not found, BSOD error, virus infection…

Fortunately, MiniTool Power Data Recovery, an all-in-one and professional data recovery software developed by famous software development company, is recommended here. This professional tool can help to effectively and quickly recover lost data without affecting the original data because of its high security and excellent performance.

Step 1: Connect your hard drive that cannot boot to another normally PC, and then launch MiniTool Power Data Recovery. After that, select Damaged Partition Recovery. To be honest, as long as the partition exists, you can recover lost data by using this module.
Step 2: Full scan the drive that cannot boot.
Step 3: Check all needed files, and save them on a safe place.

Clean on Wrong Disk? Undo Diskpart Clean Command Now! 3 years 35 weeks ago

While scanning the main portals and forums, we found many users are asking how should they recover data/partition after using diskpart clean command mistakenly:

In this post, we will go through what is diskpart clean, and how to undo diskpart clean command in two ways.

According to Microsoft, diskpart clean is a command that will remove any and all partitions or volumes from a disk. On master boot record (MBR) disks, only the MBR partitioning information and hidden sector information are overwritten. On GUID partition table (GPT) disks, the GPT partitioning information, including the Protective MBR, is overwritten; there is no hidden sector information. The disk state after cleaning is "Uninitialized".