: It is open-source, completely free, and starts up almost instantly.

: Look for the 32-bit installer or portable version on the official site. 2. Foxit PDF Reader

Finding a reliable can be tricky since many modern software updates now focus on 64-bit architecture and newer operating systems like Windows 11. However, several lightweight and feature-rich options still support this specific setup. 1. Sumatra PDF (Top Recommendation)

For those whofoxit.com/pdf-reader/">Foxit PDF Reader is a powerful alternative.

: Beyond PDFs, it supports eBook formats like EPUB and MOBI, as well as comic book files (CBZ/CBR).