How to Speed Up Vista Performance Compared to Windows XP, Vista is a much heavier and resource-hungry operating system. It has lots of great features, like Aero, but they can slow down your computer, especially if it doesn’t have enough RAM or has a weak CPU. Luckily, it’s possible to speed up computer running Windows Vista by customizing its settings. So before you spend a lot of money on new hardware, follow these simple steps to improve Vista performance. Use ReadyBoost to improve Vista performance The good thing about Windows Vista is that it has several performance-improving. ReadyBoost is one of them. Basically, it lets you use a USB flash drive as secondary memory cache, which helps your computer to run faster. Keep in mind that it’s no substitute for RAM, though. Also not all USB devices are ReadyBoost-compatible. Here are the drive requirements: It has to be USB 2.0 It must be at least 256MB (though it’s pointless to use a device smaller than 1GB) Minimum read speed has to be 3.5 MB/s Minimum write speed has to be 2.5 MB/s If you don’t know whether your flash drive is ReadyBoost compatible or not, give it a try anyway. If it is, the AutoPlay box will give you an option to use ReadyBoost: