To install Windows 7 64-bit without a DVD burner, you can create a bootable USB drive using a tool like Rufus. Here's a step-by-step guide on how to do this: 1. Download the Windows 7 ISO: Ensure you have the Windows 7 64-bit ISO file downloaded on your computer. 2. Download Rufus: - Go to the Rufus website and download the latest version of Rufus. 3. Prepare the USB Drive: - Insert a USB flash drive into your PC (make sure it's at least 8GB in size, as the ISO file is around 4GB). - Backup any data on the USB flash drive as it will be formatted during the process. 4. Create a Bootable USB Drive: - Open Rufus and select the USB drive you inserted. - Click on "SELECT" to choose the Windows 7 ISO file you downloaded. - Ensure the partition scheme is set to "MBR" for BIOS or UEFI. - Leave the other settings at their default values unless you know you need to change them. - Click "START" to begin creating the bootable USB drive. 5. Boot from the USB Drive: - Once Rufus finishes, restart your computer and enter the BIOS or UEFI settings. - Set the USB drive as the primary boot device in the BIOS. 6. Install Windows 7: - Save the BIOS settings and restart your PC. - The PC should boot from the USB drive and Windows 7 installation process will begin. - Follow the on-screen instructions to install Windows 7 64-bit on your computer. By following these steps, you should be able to install Windows 7 64-bit without the need for a DVD burner. This method uses a USB drive to boot and install the operating system. If you encounter any issues during the process or need further assistance, feel free to ask!