The 5 Linux distros you should never run on an old PC

Source Domain: www.howtogeek.com

“Just install Linux” is popular advice when someone needs to squeeze a little bit more life out of an old PC. It also leads many to believe that any old computer, no matter how ancient, can be revived by simply installing any Linux distribution on it. However, that isn’t really true—lightweight options exist, but a large share of modern distros are actually fairly demanding.

Those demanding distros will boot, but that doesn’t mean your PC that lags with Windows 11 is going to miraculously become a zippy, modern PC once you install Linux. These are 5 distros I’d recommend you avoid if you’re running older hardware and want to get the best performance.

Qubes OS

Security through virtualization is very demanding

Qubes OS is designed as a security-first OS that isolates your activities into separate virtual machines (qubes) using a hypervisor. In both theory and reality, that approach does offer some security benefits: your banking, email, and general browsing have their own isolated “world,” so a security breach in one can’t affect the others.

In practice, however, Qubes relies on hardware virtualization features like Intel VT-x or AMD-V. Older PCs either lack those features entirely or have implementations that are slow by comparison. Additionally, running multiple VMs simultaneously requires significant RAM—far more than what a 4GB (or even 8GB) machine can offer. When you…

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