Is it nessecary to use cleaning software

Hello
I was wondering if it is nessecary to clean,tweak windows 7,and if it is with what program.
Installed AVG pc tune up,360amigo system speedup and advanced system care,all new and full versions,and Ccleaner and Defraggler too.
:confused

 

Cleaning can be a dangerous occupation unless you are sure of what you are cleaning (i wiped a complete hard drive last week and i am supposed to know what i am doing thank god for backups)

I would personally uninstall AVG PC tune (but thats me)

Ccleaner is an excellent application and you can safely let it clean all that it finds also it is very safe for cleaning the registry.
Yamicsoft do a cleaning application 'Windows 7 manager' that is absolutely fantastic and very safe,it finds things that others leave behind but it is not a freebie,i got mine from 'giveaway of the day' quite a long time ago but having used it for such a long time i would happily buy it now.

http://majorgeeks.com/Windows_7_Manager_d5984.html

They also do versions for XP and Vista.
As for the rest i do not think you need anything more just a 'defrag' app and you are good to go.

You could also use Super anti spyware and Malwarebytes anti malware to protect your surfing.

http://majorgeeks.com/SUPERAntiSpyware_d5116.html

http://majorgeeks.com/download.php?det=5756

Plus a good anti virus (i use Microsoft security essentials)

 

I use mcafee total protection,and thanks for the advice regarding avg pc tune up and ccleaner

 

No, it is not.

CCleaner is one of the great free tools that cleans unnecessary junk off your computer, and it can also assist you to clean your startup items.

Cleaning the registry of unused items is not only unnecessary, but can have very undesired side effects. I have never used a registry cleaner on any of my systems (Windows 7 and XP), and they all run perfectly fine.