(ONLY DO IF YOU ARE SURE YOU WILL NOT USE THOSE APPLICATIONS)
Yes as they put info in the registry cluttering it, and sometimes they'll load sub-processes (mini programs) during the start up and into the system tray. You should perform a house clean of any programs you have installed but no longer use.
1. Click START
2. Control Panel
3. Add/Remove Programs to find and remove programs you don’t use.
Microsoft has a nice graphic representation of the instructions, step by step on ADDing and REMOVing program files from your computer. Click Here The video file below will demonstrate the steps.
NOTE: You will need to have Adobe Flash Player on your system. A common free software download to view different training modules that call centers use for training and testing. You gan get Adobe Flash Player here.
Add_Remove | 
