Is there any software that is better than Windows Task Manager?

The question about whether there is any software better than Windows Task Manager depends on what you wish to achieve. Windows Task Manager does a good job of showing you which processes are running at any given point, together with basic information about system performance. However, given your question I imagine that you would like to obtain more detailed information about running processes. There is an excellent utility called Process Explorer which fulfils this exact purpose. This was written by a company called Sysinternals which was taken-over by Microsoft a few years ago. In any case, development of their products has continued. The Process Explorer utility (technet.microsoft.com/en-us/sysinternals/bb896653.aspx) tells you a lot more about the running processes on your computer. In particular, it will just not show you the processes which are running but any other files (e.g. DLLs) which have been loaded as part of that executing process. This can also give you fairly detailed information about system performance. Process Explorer is available for free download from the Microsoft website listed above.