What Is MBRMBR (Master Boot Record) is a special type of loader code at the very beginning of computers' hard disk. It contains an operating system bootloader and the storage device’s partition table. When DOS reads hard disk, MBR will help to check whether the partition is legal and locate the partition boot information.
And, the loader code is variable. Thus, users can boot MBR from multiple operating systems. It can be found in FDISK program. MBR will pass the control over to the certain operating system which has been registered in the partition table.
About "Rebuild MBR"However, MBR could be damaged due to various attack, mistaken operation, or sudden power failure. Once MBR is damaged, we may encounter boot problems such as MBR error 3 and face black screen only. Rebuild MBR of MiniTool Partition Wizard helps rebuild MBR in quite simple operations even if Windows can not boot. That is because this partitioning program offers a bootable disc to boot computer without Windows.
How to Rebuild MBRSince Windows cannot boot, we can click the "Bootable Media Builder" feature to download MiniTool Partition Wizard Bootable Media Builder.
Kindly reminder: the free edition of MiniTool Partition Wizard doesn’t provide Bootable Media Builder.
Then, we are able to create bootable CD, DVD, USB flash drive, or build an .iso image of a bootable disc. After that, use the bootable disk to start computer to get the following window. Here, please choose the first option "Partition Wizard" to enter the main interface of MiniTool Partition Wizard.
Now, select the system disk which is suffering MBR damage and click "Rebuild MBR" from the left panel.
At last, click "Apply" button to apply the change.
And after application we need to quit from MiniTool Partition Wizard bootable disc and boot from local hard drive.
This is the end of MiniTool Partition Wizard tutorial to rebuild MBR.