Lena added one more tip: “If you must go online, use a lightweight Linux live USB for browsing. Let XP handle only the tasks it was born to do—running local industrial machines, vintage games, or offline databases.”

“Never open a door for a stranger,” Lena said. She disabled unnecessary services like Universal Plug and Play (UPnP) and turned on the Windows Firewall. “Now, any program that wants to talk to the internet needs permission first.”

Lena smiled. “That’s why I’m here. We can’t change who you are, but we can build smart habits around you.”

Lena bought a cheap external hard drive. “We’ll back up your bakery receipts and library records every night. If a worm ever slips in, we can wipe you clean and restore from this. No data left behind.”