Are you having problems with your PC with the error message “Invalid partition table”?

Do you have any idea what it means and what is the cause of this problem?

Do you know what you can do to fix it?

All the data on your computer is stored on hard drives that are divided into sections known as “partitions.”

Operating systems treat partitions as independent drives and their properties are stored in the partition table file.

If the partition table is not available or corrupted, the drive will stop working properly. If the said drive has the operating systems installed, the computer may not even start, resulting in the error message.

This error can also be caused by a power outage that occurs in the middle of disk writing or a virus or software bug that corrupts the partition’s input. Invalid partition table – Below are 3 methods to solve it.

Solution n. 1 (Windows 7 built-in partition repair tools)

• First disconnect all external or removable drives from your computer and then restart it.
• Allow the BIOS screen to appear. In some cases, it is just a black screen with lots of white details, but sometimes it could be the logo of the computer manufacturer, as in the case of Dell computers.
• Immediately the BIOS screen disappears, press and hold the “f8” key to bring up the advanced boot options menu, and then select repair your computer to load the Windows 7 recovery environment.
• Now you need to select the keyboard layout from the drop-down box, log in with an administrator account to access the systems recovery options windows, and click the command prompt.
• Now type “bootrec / fixmbr” omitting the quotes at the command prompt.
• If this doesn’t work, you can start the process from above and type “bootrec / fixboot” for a second attempt and “bootrec / RebuildBcd” for a third attempt, also omitting the question marks at the command prompt on each attempt.

Solution n. 2 (Update BIOS Parameters)

Unplug the computer and open the case.

• Locate and remove the battery from the motherboard and confirm whether the positive side is up or down. This is to make sure things don’t get mixed up during reinstallation.
• Wait about 1 minute, after which you can reinstall the battery, connect the power, and turn on the computer.
• You should now see a BIOS warning message showing that the CMOS was changed or corrupted and you may need to enter BIOS setup to set the date and time.
• Start widows and see if the error is fixed.

Solution n. 3 (the boot method)

Boot your computer using the Windows XP recovery console or Windows 98 boot disk and type “fdisk” without quotes at the DOS command prompt.

The following question will appear: do you want to expand disk media (yes / no)?

• Enter: yes.
• Now you need to check the active partition by entering the number: 2.
• Active partitions are usually mapped to the drive that contains your operating system, so check the status column.
• If you cannot find any set of active partitions, enter the partition number to activate it.
• Restart your computer to see the problem resolved

If you are using method one and were unable to fix the problem after trying three times, the disk may not be recoverable. This means that you must format the disk and reinstall the operating system.