You are not the only one that has mentioned "disabling services". What is that exactly and what are you disabling.
A lot of the windows operating system are modules (small subprograms), called services, that run in the background, or just sit in memory waiting to be called to do their specific task. Not all of them are actually necessary for general use and many of them may not actually execute any useful operations during a session. Some people think they can radically improve their computer's performance by keeping unnecessary services from loading at all or disabling them after startup. Except for a few instances where a specific service might interfere with a particular application, this is a generally disappointing, and sometimes disastrous, enterprise. Most machines capable of running windows comfortably, can handle the standard services without any noticeable drag on performance.
Type "services" into your start menu "search for programs and files" box and double click the "services" shortcut and you can see what is running on your machine. Some of these are essential to running anything at all, others will only come into play when needed. You can actually change the way they load, or keep them from loading pretty easily from this control panel applet. The trick is knowing which you can get away with killing, as some are critical.
http://www.blackviper.com/windows-services/