| Feature | Real Windows XP | Q4OS XP (Linux) | | :--- | :--- | :--- | | | Critical vulnerabilities (EternalBlue, etc.) | Hardened Linux kernel, daily security updates | | Hardware Support | No drivers for NVMe, USB 3.0, or Wi-Fi 6 | Native support for modern hardware | | Software | Old browsers (Chrome 49, Firefox 52) | Modern Firefox, Chrome, LibreOffice, Steam | | Speed | Sluggish on modern UEFI systems | Blazing fast even on 15-year-old PCs | | Cost | Requires paid license (or piracy) | 100% Free and Open Source |

✅ Faster than XP on same hardware (especially boot and multitasking). ❌ Cons: Browser (Firefox, Chromium) will still be heavy – not the OS’s fault.

Q4OS is a Debian-based Linux distribution that was first released in 2015. The operating system is designed to provide a familiar interface for users who are nostalgic for Windows XP. Q4OS features a custom desktop environment called "Trinity," which is a fork of the KDE 3.5 desktop environment. This design choice allows Q4OS to evoke the look and feel of Windows XP while providing a modern and functional computing experience.