Yes, there are several ways to reduce the amount of RAM your PC uses.
1. Close any unnecessary programs or applications that take up a lot of RAM such as web browsers, media players, gaming clients, etc.
2. Reduce the number of programs running in the background – these can take up a lot of RAM without you knowing it.
3. Lower the visual effects of your operating system by disabling features such as ‘transparency’.
4. Reduce the number of active processes – disable any unnecessary processes and services.
5. Upgrade your RAM to a higher capacity, if possible. This will allow you to run more programs at once and make better use of the RAM you already have.