Program for stoping specific background processes?

Safe mode usually won't clear out those. Here's how you do it.

Ctrl+Alt+Del to open the Task Manager
Find the process called explorer.exe
End this process
In the Task Manager, go up to File->New Task
Type in cmd.exe

The window that opens up is how you can delete files that seem undeletable. you might have to do a bit of browsing to find the file or folders that you want to delete. You can use old DOS commands like cd and del to get rid of files. For example, if you want to delete XYZ.EXE in C:\Program Files\Downloads, type in:

cd c:\Program Files\Downloads
del XYZ.exe

When you are finished, you can close this window.

To get Windows back to normal:

Ctrl+Alt+Delete
File->New Task
explorer.exe

Viola.

Jam it back in, in the dark.