Before downloading, she showed her father how to check the file’s hash—a unique code. She used a free tool to generate the SHA-1 checksum of the ISO she downloaded. She compared it to Microsoft’s published value from 2011. They matched perfectly. This ISO was pure .
That’s when she remembered the .
Her father hugged her. “I thought that key was useless after all these years.”
“I need Windows 7,” he told Maya, panicked. “I have the product key on the sticker, but the discs are long gone.”
She used a free tool called Rufus to write the ISO to a USB flash drive. The old Dell’s DVD drive was broken, but it could boot from USB.