Files named Serial Number Need For Speed Hot Pursuit 2010 Pc Cd Key.rar are frequently used as bait for:

Files from unverified sources, especially .rar files from unknown or suspicious websites, can contain malware or viruses. These can compromise your computer's security, leading to data theft, system damage, or other cyber-security issues.

You run the keygen. Your antivirus screams like a siren. Is it a false positive because keygens use obfuscation? Or is it a genuine Trojan that wants to mine Bitcoin on your Grandma’s Dell Inspiron? You will never know. You are now playing Russian Roulette with your Windows Registry.