How to format a computer using command prompt in BIOS

Format a computer using command prompt in BIOS are often used when you want to format system partition on your hard drive, to proceed, you need to prepare a system bootable CD/DVD.

Steps to format a computer using command prompt in BIOS

         1.      Insert bootable CD/DVD,> Reboot;  > Press F2/F8/Delete bottom, or any other key according to your pc prompt, to go into BIOS;

         2.      Define boot order: make boot form CD/DVD as the first option; > Save; > Exit;

          3.      Reboot; > click Use recovery tools that can help fix problems starting Windows when you disc loaded;
> Windows installation; > Command Prompt

4.         Type: format c: /fs: ntfs

To format a computer c drive in windows 7 and reinstall it, just insert a your bootable system CD/DVD after the steps above.

How to Format Non-system partition:

There are many ways to format non-system partition, also called data partition or logical partition, I will listed 4 of them to format data partition: 
 1. Format Partition in Command Prompt:

    1.1 Open command prompt by Typing CMD in Run box (WIN+R)
    1.2 Type command in order:
        diskpart  
        list disk  
        select disk ###  
        list partition  
        Select partition ###  
        format    
    1.3 Type: exit

2. Format Partition in Disk Management:

    2.1 Press Win+R to Run diskmgmt.msc
    2.2 When your disk map loaded, right-click on the partition you want to format; > Format;
    2.3 Select file system : NTFS or FAT32, NTFS is recommended
    2.4 Tick Quick Format

3. Format Partition in Windows Explorer:

    3.1 Press WIN+E to open Windows Explorer
    3.2 Right-click on the target partition; > Format
    3.3 Choose File system; > Tick Quick Format; > OK

4. Format Partition in Partition Expert:

    4.1 Run Partition Expert; > Right-click on data partition; > Format Volume;
    4.2 Choose File system: NTFS; > cluster size: 4K; > tick Quick Format;
    4.3 OK; > Commit;