One last thing, make sure to open up the application you plan on disabling and see if there's a option to disable it from there - it's no use having a mismatch between what windows sais and what the program thinks. Also, it's a good idea to remove the program if you're not going to use it.
Also, when disabling services, don't disable them from start-->run--->MSCONFIG, disable them from SERVICES.MSC. Also, stopping services from starting up by setting them to manual or disabled can stop some programs from working - so make sure you know what you're doing.