Bootmgr is missing windows 7 hard disk


















Please make in mind for your current BIOS version and download the new version from the manufacturer website, if you have anything problem, please consult your manufacturer.

In order to repair your boot sector, you need a Windows Installation disc. You can fix the corrupted boot sector afterwards. Thus, you can rebuild MBR for your computer. See more details below and choose a proper method based on your situation. The first thing you have to prepare is a Windows Installation disc. Then boot from that disc and enter system recovery options or repair your computer, and choose command prompt. Next you can enter these commands in turn. The specific steps are listed below:.

Step 1. Install and launch the software on another working computer. Connect an empty USB drive to it. Step 2. Please launch MiniTool Partition Wizard. After finishing this operation, please exit the program and restart your computer again. In addition to performing MBR recovery, some of you choose to use the bootrec tool.

Firstly, you need to prepare a Windows installation disc and connect it to your PC. Please launch CMD according to the wizard. Therefore, here we suggest using MiniTool Partition Wizard since it is a more convenient solution. In PC there is only one active partition and system partition or boot partition must be primary and active. In this case, you must mark the partition within boot files active to ensure the computer runs properly.

In order to solve the issue, please reset your system partition active. Step 1: Select the wrong active partition. You could see there are many partition functions in the left pane and please select Set Inactive.

Step 3: At last, you will go back to the main interface of MiniTool Partition Wizard again and click the Apply button to make these changes effective. What you need to do is to check the disk surface. If bad sectors exist, this tool will mark them red. On the contrary, healthy sectors will be marked green. Once bad blocks are found, you can use the chkdsk tool to shield them.

If there are many bad blocks, in order to avoid data loss, please back up the significant data on the target disk. Fortunately, MiniTool Partition Wizard has those two functions: copy partition and copy disk. Here we strongly suggest cloning the entire disk data to an appropriate hard drive.

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