Currently Being ModeratedJun 22, 2013 12:40 PM (in response to Z_B-B)
Mountain Lion has built in maintenance scripts that are run daily, weekly, monthly without you needing to be involved. There is not the need to defrag or other optimisation, in fact some of these programs can cause performance to deteriorate.
OnyX is a free tool that is a front end for some of the many built in functions. It should only be used sparingly and with due care. Make sure you have a backup of your system before using any such tools.
Currently Being ModeratedJun 22, 2013 12:41 PM (in response to Z_B-B)
That's not necessary on a Mac. The Mac OS X takes care of maintenance for you in the background.
A word to the wise. Any third party so called optimization / cleaning / maintenance software for Mac can cause more harm than good.
I am looking for a good and free software that does Optimisation to the computer -
If you want to waste time maintaining a computer buy a Windows PC. The Mac needs no such pampering. Use it when you need it, ignore it when you don't.MacBooks iMacs iPads AirPorts, OS X Mountain Lion, 28 years Apple!
I believe she already gave you the answer. Can do more harm than good. No need to waste any money on it, even though it would seem to be judged the best at what it does by all the user opinions I have read.
If you start having issues there are almost always always free alternatives available.
There is very little free software that can optimize a Mac's performance.
CCleaner is designed mainly for after adult content surfing cleaning. Free.
OnyX has cache cleaning abilities that is good if your having a problem with the caches being corrupted which can make the machine act slow or problematic. But otherwise isn't really a optitimization otherwise. It's also Free.
To optimize your machine you have to understand how it works, what can cause it to be slow and what you can and cannot do with it.
Sometimes it's a problem with the machine itself
If all the above are satisfied, then perhaps a reduction in files and very good defrag is in order
If you want a free software utility that performs optimization and cleaning routines, then get OnyX: http://www.titanium.free.fr/downloadonyx.php
This isnt an endorsement of its necessity, but it is a free option that does some of what you are asking.