Often includes registry tweaks to disable services, reduce visual effects, and speed up shutdown/boot times.

If you are looking to speed up an old computer, let me know: does it have? Is it using a traditional HDD or an SSD ?

While the goal is to make it "fast," removing too many components often results in an unstable system that crashes or breaks key functionality (like networking or USB driver support).

It can technically run on 1GB of RAM and older CPUs, making it usable for reviving obsolete laptops. The Verdict

You cannot receive official updates, making the system vulnerable to new security threats.

If you have a completely separate, obsolete computer you want to test with for fun, it may work, but it is not recommended. Safer Alternatives