In my previous role, I encountered a situation where several users were experiencing significant slowness and hanging issues with their laptops. After conducting a thorough analysis, I discovered that the primary cause was the hard drive reaching 100% usage, which was a bottleneck for performance. To address this, I recommended upgrading from a traditional hard drive to a solid-state drive (SSD), which significantly improved the speed and responsiveness of the systems. Additionally, I identified that some laptops were operating with only 4 GB of RAM, which was insufficient for their needs. I upgraded these systems to 8 GB of RAM, which further enhanced their performance. These upgrades resolved the slowness issues and provided a much smoother user experience.