Aside from the limitations of 32-bit operating systems, it is difficult to have too much memory installed. But if you are using an older system, it is possible that you only have a small amount of RAM, and to compensate for this Windows has to make use of a section of hard drive known as the page file to act as virtual memory. While this enables your computer to keep running when you run low on memory, it is far slower than using actual memory, and can cause severe system slow down.
CleanMem helps to ensure that you always have as much memory free as possible by enhancing the way in which Windows manages memory usage. Although the program has not been designed to speed up your computer, it does help to eliminate memory bottlenecks, leaving you with a smoother running system.
The utility can also help with programs that suffer from memory leaks, but the main advantages come from minimising the amount of time Windows has to spend read files from a slow mechanical hard drive. Memory optimisation tools have received something of a bad press in the past, and while it is true that many simply do not work, CleanMem makes a noticeable difference to system performance.
There is no difference between the Free and Pro version of CleanMem when it comes to core functionality. However, by opting to upgrade to the Pro version, you gain access to the Mini Monitor which provide real-time feedback about the mount of memory you are currently using as well as providing the option of automatically clearing the system cache at predefined intervals.