CCleaner is one of the most essential software for windows.It cleans your registry of broken files and also it deletes unwanted temporary files making more space.You might not belive this after using CCleaner I was able to recover 2.4gb of memory.It really works.
It also clears cookies and browser history which is also a very good feature.This helps windows run much faster and you can feel the increase in speed after using this app.CCleaner also deletes duplicate files in the system.It optimizes our system to work faster.The best thing about this software is that it is free.I would totally suggest you this product.