I stopped using portable applications for a long time. Between cloud storage, web apps, modern package managers, and the ever-growing number of regular apps you can download and install, they just didn't seem all that necessary. That changed when I ran into a situation with a friend's laptop where the operating system was so badly messed up that nothing would work correctly, including internet connectivity. All the cloud apps and installers in the world couldn't help. So, I went home and put together a toolkit to repair any PC I might encounter.