Windows 10 Alternatives  6 Best Lightweight OS to Speed Up Old PCs If you’ve held onto your old computer for years, chances are it’s beginning to show its age—slower startups, laggy performance, and limited support for modern software. With Microsoft phasing out support for some versions of Windows 10, many users are stuck between expensive hardware upgrades or struggling with bloated operating systems. But there’s a smarter, greener, and cheaper solution: 6 Best Lightweight OS, modern operating systems designed to revive older machines. This guide explores fast, regularly updated 6 Best Lightweight OS to Windows 10 that are compatible with both Windows and open-source software—perfect for users who want performance without the price tag. What Makes a Great OS for Aging PCs? To find the right fit, we need to focus on a few key qualities: Performance on Low Specs : Most old PCs can’t handle today's resource-heavy OS. A lightweight system ensures speed and usability. Regular Updates ...