1. Enter the BIOS of your computer. This must be done during start-up, so begin the process by restarting your computer. When the message appears on the computer screen that reads 'Press [key] to enter setup,' press the key listed on the screen.
2. Arrow down to the 'Security' section in the navigation pane of the BIOS screen. Use the ' ' sign to expand the section and show its contents on most computers.

3. Select the 'Boot Virus Protection' option from the list of security features. Press the 'Enter' key to make the 'Boot Virus Protection' option active.
4. Click the ' ' or '-' button in the BIOS of most computers to switch from 'Enabled' to 'Disabled.' The boot virus protection feature switches off.
5. Restart your computer and install Windows to the system. Once you install Windows, return to the BIOS just as before and enable the boot protection feature again.