Grab a spare USB drive (even a 16GB one will hold hundreds of apps). Visit PortableApps.com. Download the platform. Build your arsenal. You will never look at software installation the same way again.
In the modern digital landscape, the way we interact with software is changing. The days of being tethered to a single, bulky desktop computer with a static list of installed programs are fading. Today, mobility, security, and efficiency reign supreme. This is where the concept of portable4pc comes into play.
Do not use a cheap, slow USB 2.0 drive. Invest in a USB 3.2 Gen 1 or Gen 2 flash drive (or an NVMe SSD in an enclosure). Speed matters, especially if you run large programs like browsers or office suites.