Learn How Cleaning Your PC Can Make it Faster!
Too many processes - Now this one is self-evident, if your PC is using lots of applications at the same time then it does not need a rocket scientist to make you aware that the pc will be executing a lot more stagnant as a result.
To fix this puzzle you need to start to end all of the programs that are being run that are not required to your machine's execution.
Also attempt to not to own a full hard disk if possible, if you have processes on your pc that you no longer need then why keep them around? You should place them in the good recycle bin! Virus, Spyware or just common Malware contamination - This is the single most likely originator of a machine slowing down and not running as undisturbed and efficient as it formerly did.
All virus contaminations come from some form of download, more than likely hitched on to a file that you use and works.
This is where the malware sculptors deceive you, you download a program and utilize it as it is supposed to be used without knowing that in your systems background the malware is sneakily working away while you remain unaware!