How To Fix 3 TB Hard Disk Drive that Shows 746 GB Unallocated

To use all the space of your 3TB HDD you will need a disk of 64 bit Windows 7 or up. The 32 bit version of operating system uses - MBR (Master Boot Record) type partition system which can partition up to 2TB. That is why the remaining 746GB stays unallocated. The 64 bit Windows uses GPT (GUID Partition Table) type partition system which can handle upto 9.4ZB space.

(Don't forget to Backup your important data first).

For GPT type partitioning:-

1. You'll need a Motherboard that supports UEFI (Unified Extensible Firmware Interface).

2. Enter Motherboard's settings (BIOS) by pressing F2/Delete key.

3. Enable UEFI Mode instead of Legacy.

4. Save and Exit Motherboard's settings (BIOS).

5. Boot 64 Bit Windows disk in UEFI Mode.

6. In the partitioning window if you have any MBR type partition delete them.

7. After deletion create new partitions and install Windows.

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How To Repair a Motherboard

If your motherboard circuits got burned then there is no way you can fix it. But if a virus deletes your BIOS then your motherboard will stop working. There will be no POST operation. You'll get no display on your monitor screen. Your Processor fan will rotate but your computer won't start. Even if you remove your RAM there will be no siren or beep. So you can assume that your PC's BIOS has probably been corrupted. You can fix this problem by:

1. Find a motherboard that uses the same version BIOS (Take help from the manufacturer's website).

2. Remove your hard disk drive because it may contain the virus that caused the problem. Then Insert a good HDD that has a previously installed Operating System, good Antivirus and same version BIOS installer in it (Download the BIOS installer from the manufacturer's website).

3. Take the BIOS chip out of the bad motherboard (Use a screw driver or chip puller to do this).

4. Now take the BIOS chip out of the working motherboard and insert it into the bad motherboard (Don't press it too hard or else it will go in all the way. Softly connect the chip's connectors with the socket).

5. Boot the motherboard with the temporary new chip.

6. Now remove the temporary chip from the running motherboard (Use a screw driver or chip puller to do this).

7. Insert the bad BIOS chip into the socket.

8. Run the BIOS installer setup and install/flash the BIOS.

9. Restart/Reboot the computer.

10. If your PC Reboots then your motherboard is fixed.

11. Don't forget to put the working BIOS chip back to its own motherboard.

Conclusion: This is not for amateurs. Any mistake can damage an active motherboard. If you are not sure how to do this then get an expert or buy a new MOBO.

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