Insert the bootable USB drive or DVD and follow the on-screen instructions to install Windows 7.

Step 1: Create Bootable MediaUse a tool like Rufus to "burn" the ISO onto a USB flash drive (at least 8GB). Ensure the partition scheme is set to MBR for older BIOS-based computers.

Historically, Digital River was used by Microsoft for downloads. However, be cautious and ensure you're using a legitimate link from Microsoft or another trusted source.