You can manually clean everything using Windows default features. With Windows, your system generates day to day garbage left from program installations, updates, online activities, and many more activities.
This logic can now be applied in the same way as to how things are with your PC. Convenient would be to have someone else arrange and clean up for you regularly. Again this is not a convenient solution as it requires dedicated time. So, the solution is, you can keep things organized daily. Now, depending on your capabilities to find out stuff and manage space, you might feel the heat at some point and fail to cope up. As time passes by with an increase in workload, your desk is stuffed with files and day-to-day usage. In the beginning, you have fewer files and stuff on your desk and drawer, and hence things are easy to find/organize. Ever felt one day that your PC is slowing down compared to the brand new condition Or a Fresh Windows installation? Well, This phenomenon can be explained.