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Invalid Partition Table

Invalid Partition Table & Missing Operating System

When your computerpower up, it examines the master partition table to determine what volume to use to boot up the operating system, and detected invalid information within it. This is caused by an incorrect or missing active partition

A system that has Master Boot Record (MBR) corruption will execute the BIOS power-on self test (POST), display BIOS version information or OEM branding, switch to a black screen, and then hang. Depending on the type of corruption the MBR has experienced, you might see one of the following messages: “Invalid Partition Table,” “Error Loading Operating System,” or “Missing Operating System.”
The MBR can become corrupt because of hard-disk errors, disk corruption as a result of a driver bug while Windows is running, or intentional scrambling as a result of a virus.

Solution

Use Windows XP Recovery Console to fix Invalid Partition Table by fixmbr

XP Recovery Console fixmbr solving Invalid Partition Table Invalid Partition Table & Missing Operating System 2

The Recovery Console is a text mode recovery tool in Windows XP. It is on the Windows XP CD and you can install it to the hard disc as an extra boot option.

Change BIOS settings to first boot from CD\DVD-ROM drive and boot from Windows XP CD. Presing ‘R’ key, you would see screen as below,

Select the drive number of inatlled Windows XP

Enter administrator password

Now type FIXMBR

Press Y to confirm your action

XP Recovery Console: Invalid Partition Table & Missing Operating System 1

This command replaces the executable code in the MBR. Unfortunately, it does not repair the partition table. The only way to restore a damaged partition table is to restore it from a backup copy or to use a third-party disk-corruption repair tool.

Invalid Partition Table

Invalid Partition Table & Missing Operating System

Solution

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