The main reason for formatting a hard disk is to reinstall the operating system.
Before you start the process, you need to copy all the necessary information to an external medium.
One of the most common options -Use the installation disc or flash drive. During one of the stages the system will tell you that you need to format this or that section. Select the necessary item, press the "Format" button, set the necessary settings and wait until the procedure is over. Be careful and set the parameters that will suit your system.
You can also use special software. Next, we will look at the process using the example of Acronics Disk. First download the program to the computer from the official developer site. Next, use Nero Burning or Microsoft's standard tools to burn the image to disk. Restart the computer and go to the BIOS menu. Set the settings so that the system first runs a DVD or CD-ROM. Next, the principle of action is about the same: select the necessary section, click the "Format" button, specify the parameters and wait until the end.
If you do not have access to the Internet orSpecialized software, you can do a little more complicated way. Disassemble your system unit and remove the hard drive. Then connect it to another computer on which a different version of the operating system is installed. Boot under the second computer and go to the settings. Then select the disk you need, right-click on its icon and select "Format".