Privacy Eraser is an all-in-one privacy suite, PC optimization and cleaning tool.
It cleans all of your internet history traces and past activities with one click, recovers hard drive space by deleting unnecessary and redundant files, speeds up internet surfing and browsing, boosts your PC's performance and stability making it faster, leaner and more efficient.
It is a great cleaning program, far better than CCleaner.
Just like the installed program, the portable one opens with a window too big for my 10 inch screen netbook, hiding all the bars, but I found that if I right-clickecd on the little green section at the bottom of the vertical blue line on the left of the screen, my taskbar would be revealed and then I could close the program without having to use Ctrl - Alt - Del.
It never remembered my settings. Every time I opened the program they had gone back to default. I very soon grew tired of unchecking Run at Windows start and turning off monitoring, etc., which was pointless because they would be back on again next time.
See also my review of the installable software Privacy Eraser Free.
MY ADDITION TO THE ABOVE REVIEW:
I tried the portable version on another computer, a desktop pc with Windows 8.1, and to my pleasure I found it worked without any problems - or that's what I thought until I looked at my browsing history and discovered that it wasn't all being cleared.
Oh, and though it is allegedly portable, it puts a folder in your application data on your hard drive and it creates registry keys.