Security software is supposed to defend your PC — but when it’s outdated, duplicated, or packed with extras, it can quietly turn into the single biggest cause of a “slow but not ancient” Windows machine.
Background
Modern antivirus products have evolved far beyond a single malware scanner. What started as lightweight signature-based scanners is now a sprawling ecosystem of real-time engines, kernel drivers, network monitors, VPNs, password managers, browser extensions, and marketing modules...