It's a search and delete of the program's .exe and other files. Usually just removing the home directory in Program Files is enough.
There is NO step by step for this method, only guides.
I have a Dell Inspiron B130 notebook running Windows XP. A few weeks ago I installed 3 programs, WinCleaner Memory Optimizer, SpeedItUp, and PC Checkup. After a few days, SpeedIt Up and PC Checkup began to block my attempts to defrag my hard drive. So I used the uninstall that came with each program to remove them but they remained. Next I went to Control Panel and used Uninstall Software, and still they remained. So I then went into DOS Prompt and located them in the directory and removed them. I know this is not the best way and leaves Reg files but at this point I wanted them gone and would deal with the fall out later. However, you guessed it, all three programs are still there. I have checked their attribitues and they are not protected. How can I take control of my computer back, get these off of my hardrive without a complete re-format?