Arduino, ESP32/8266, Bluetooth, and stuff
Old office PCs used for simple web browsing or word processing.
For general home use, business, or any task involving sensitive data (online banking, personal files), you should never install a third-party modified operating system. The performance gains are not worth the potential cost of a security breach. Even for older hardware, Microsoft's official Windows 10 LTSC or a lightweight Linux distribution are far safer and more reliable choices. windows 10 super lite x86
✅ : Use official Windows 10 32-bit + manually disable unnecessary services & visual effects. ✅ Lightweight official OS : Try Linux Mint Xfce (32-bit) or a Chromium OS build. Old office PCs used for simple web browsing