What is MediaPerformer?
By MediaPerformer
What is it?
MediaPerformer is a media player by PerformerSoft that is typically bundled with various PerformerSoft software applications as well as other third-party installers. The Performer Soft's Media Performer can be uninstalled using the Windows Add/Remove Programs.
Why should I uninstall MediaPerformer?
Unless you are actively using MediaPerformer you should disable it from running as it utilizes an abnormal amount of system resources even when your PC is idle. It is also configured to auto start and run in the background when your PC boots. It is recommended if you want to continue running MediaPerformer, you should only use it on demand and start it manually when needed.
Description from MediaPerformer“The Ultimate Media Player; also known as MediaPerformer; is the only media player you need for the sharpest, cleanest, most vivid video playback. The player supports all key video formats, DVDs, audio files, image files and even accesses ISO files without needing to unpack them. You say it, and MediaPerformer will probably play it.”
Publisher about URL: http://www.performersoft.com/media-performer.php
How to Automatically Uninstall MediaPerformer (with Boost)
If you you do not have Boost installed yet, download Boost and enjoy your PC.
Open Boost by either double-clicking the Boost icon 
in your notification area next to your PC's clock, or single-clicking the Boost icon and clicking the Open Boost button on the top left of the Boost notification window.
If you are not currently on the My PC screen of the main Boost window, click the My PC tab.
Click the Optimize programs button 
, this will launch the Program Optimization screen.
Locate the program in the list called MediaPerformer by MediaPerformer. (The program could be listed under any of the section such as Uninstall Recommended, Possible Uninstall, etc. based on how well MediaPerformer performs on your PC.)
MediaPerformer by MediaPerformer
To the right of the list item, click the Uninstall 
button and Boost will completely remove MediaPerformer from your PC.
How to Manually Uninstall MediaPerformer (with Windows)
Use Add/Remove Programs control panel in Windows makes to uninstall MediaPerformer. Follow the appropriate instructions below to use this control panel.
Windows 7
From the Start menu, select Control Panel.
In Large or Small icon view, click Programs and Features. If you're using Category view, under "Programs", click Uninstall a program.
Select MediaPerformer from the list of programs, and click Uninstall. Alternatively, right-click the program and select Uninstall.
Windows Vista
From the Start menu, select Control Panel.
In Classic View, double-click Programs and Features. In Control Panel Home view, under "Programs", click Uninstall a program.
Select MediaPerformer from the program list, and click Uninstall. Alternatively, right-click the program and select Uninstall.
Windows XP
From the Start menu, select Control Panel.
Click the Add or Remove Programs icon.
Select MediaPerformer from the list of programs and click Remove.