I find that a lot of my users end up with PC Optimizer, iWin Games and lots of other programs that require me to perform cleanups on their computers. Fortunately most of the things they get installed on their machines are easily removable with Rogue Killer, Malwarebytes, add remove programs and removing the extensions (assuming their using Chrome).
I do my best to educate them on "responsible clicking" but they don't always listen.
Most of these programs get installed on their computers when their searching for something they want and/or installing a program and its an add-in that they just don't know to unchecked.
These computers aren't on a domain and are mostly home computers so controlling program installation through user permissions isn't an option.
OS's are Windows 7 and Windows 8. Thanks in advance.