MBR overwritten. Some programs may accidentally write part of the MBR when they are installed on the external drive. Other behaviors like shut down PC without disconnecting the external drive also do harm to the MBR sector. MBR of external hard drive can be damaged, yet it can be fixed as well. Choose the one that is suitable for you. Note : All data on the external hard drive will be lost. If you have important data needs to be recovered on the external drive, turn to professional data recovery software, please.
Connect the external disk to your computer. Shut down the machine and insert the installation disc. Boot from the disc. At the prompt, type the drive letter of your external hard drive partition, like F:, followed by a colon and press Enter.
If it detected virus existing in virus, the program will clean it up automatically, you can also scan the whole system for detecting the hidden virus. Generally, when the virus has been cleaned up, your computer will back to normal and you can use it without any problem. Some computers have a special recovery partition that allows you to start the Windows RE by pressing a special key directly without needing a physical disc.
Then, you will get into the Advanced Options page. Note: here you can run Startup Repair first to see whether it can fix problems that keep Windows from loading. If the boot sector was replaced with a nonstandard Windows boot sector, or if the boot sector is damaged, you can run this command.
This option scans all disks for installations that are compatible with the current Windows OS. It also displays the entries that are currently not in the BCD store. Use this option when there are another Windows installations that the Boot Manager menu does not list. This command will scan all disks for installations that are compatible with the current Windows OS.
So you might need a MBR repair tool for external hard drive to ensure that your hard drive can function well. Before learning how to fix MBR on hard drive, you might want to know what can cause the MBR damage of external or internal hard drive, so as to prevent possible MBR corruption in future.
Generally speaking, there are three main causes for damaged MBR either on external hard drive or internal hard drive:. A virus infection: when a virus is loaded onto your computer, the MBR will become its prior target to infect since master boot record is the most important part of your hard drive. A drive failure: if there are some defective clusters on the area where the MBR is located on the hard drive, the master boot record is more likely to become unreadable.
MBR overwrite : if the master boot record is overwritten by some programs accidentally, it will become damaged as well. Now, back to the point- is there any professional MBR repair tool to fix damaged master boot record? Free Download. Then hit Apply button to start to repair boot sector on external hard drive or USB drive.
Then check if you can boot Windows from external drive and access the external hard drive now. If your external hard drive is still not working or responding for unknown reasons after fixing the MBR on external drive, you can further use MiniTool Partition Wizard to recover lost partitions and recover lost data, check and fix hard drive file system errors, and check if the external hard drive has some bad sectors.
Buy Now. Step 1. Step 2. Choose and right-click the external drive and click Partition Recovery. Step 3.
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