The main reason to format the hard disk - is to reinstall the operating system.
Before you begin the process, you need to copy all the necessary information to external media.
One of the most common variants -Use the installation disk or USB drive. During one of the stages of the system will tell you that you need to format a particular section. Select the desired item, click on the "Format", select the desired settings and wait for the procedure. Be careful to set the parameters that will fit your system.
You can also use a special software. Next will be considered in the process of Example Acronics Disk. First download the program to your computer from the official site of the developer. Then with Nero Burning or standard Microsoft tools write the image to disk. Restart your computer and enter the BIOS menu. Set the setting so that the system first launched a DVD- or CD-ROM. Next, the principle of action is about the same: select a section, click "Format", select settings, and wait for the end.
If you do not have access to the Internet orspecialized software, you can do a little bit more complicated. Disassemble your system unit and pull out the hard drive. Then connect it to another computer that is running a different version of the operating system. Boot the system by the second computer and go to the settings. Then select the desired drive, right-click on its icon and select "Format."