How to reformat a personal computer

HOW TO REFORMAT A PERSONAL COMPUTER 

To format your hard disk during Windows 7 installation, you'll need to start, or boot, your computer using the Windows 7 installation disc or USB flash drive.

1. Turn on your computer so that Windows starts normally, insert the Windows 7 installation disc or USB flash drive, and then shut down your computer.
2. Restart your computer.
3. Press any key when prompted, and then follow the instructions that appear.
4. On the "Install Windows" page, enter your language and other preferences, and then click Next.
5. If the "Install Windows" page doesn't appear, and you're not asked to press any key, you might need to change some system settings. To learn how to do this, see Start your computer from a Windows 7 installation disc or USB flash drive.
6. On the "Please read the license terms" page, if you accept the license terms, click I accept the license terms, and then click Next.
7. On the "Which type of installation do you want?" page, click Custom.
8. On the "Where do you want to install Windows?" page, click Drive options (advanced).
9. Click the partition that you want to format and click Format.
10.  After formatting, setup will start copying files on to the hard disk.
    
    
    
    
    
    11 After copying of files, setup will start installing Windows. 
    
    
    
    
    
    12 Select desired language and regional settings, when prompted by setup.
    
    
    
    
    
    13 Enter windows key.
    
    
    
    
    
    14 Type a name for your computer.
    
    
    
    
    
    15 Select time and date settings and time zone according to your country.
    
    
    
    
    
    16 Provide network settings for networking pc's or select typical settings and press enter.
    
    
    
    
    
    17 Setup will install devices and register components.
    
    
    
    
    
    18 After completion setup will do a cleanup of files and will restart your pc automatically. At this stage you can remove CD from drive.
    
    
    
    
    
    
    
    

    To Create A Partition

    
    
    What is disk partitioning?
    
    
    Disk Partitioning is the creation of one or more regions on a  hard disk or other secondary storage, so that an operating system  can manage information in each region separately.
    
    
    Partitioning is typically the first step of preparing a newly manufactured disk, before any files or directories have been created. 
    
    
    
    Remember:
    
    
                         1 KB      = thousand bytes
                         1 MB     = million bytes
                         1 GB      = billion bytes
                         1 TB       = trillion bytes
    
    
    Remember:
    
    
                         1 KB      = 1024 bytes
                         1 MB     = 1024 KB
                         1 GB      = 1024 MB
                         1 TB       = 1024 GB
    
    
    EXAMPLE:
    
    
    Original size/capacity = 40995 MB
    
    
    P1   - 50 %             =      40995 x .50       =        20498    
    P2   - 50 %             =      40995 x .50       =        20498 
    
    
    
    
    Original size/capacity = 40995 MB
    
    
    P1   - 25 GB           =      25 x 1024         =         25600
    P2   - 25  %            =      40995 x .25      =         10249
    P3   - The rest     
      
    
    
    Original size/capacity = 38162 MB
    
    
    P1   - 15 GB           =      15 x 1024          =        15360 
    P2   - 30 %             =      38162 x .30       =        11449
    P3   - 100%           
    
    
    
    Original size/capacity = 38162 MB
    
    
    P1   - 39 %            =      38162 x .39         =        14883
    P2   - 11 GB           =      11 x 1024            =        11264