Hello Kadas21. I liked reading your configuration, and I've liked ESET too!
I'll second Silversurfer's suggestions, particularly CCleaner!
CCleaner Free http://www.piriform.com/ccleaner/download There is also a portable version I've installed (extracted onto an external flash drive) offered under "Builds" at the bottom of the page.
2 x64 Bit Gecko engined Mozilla sourced (Firefox-like) browsers I use and recommend are