my toshiba satellite L750/L755 windows 7 is running highly slow

[fiifi]

my Toshiba satellite L750/L755 windows 7 is running extremely slow, even after formatting. please help me to solve this problem. i need an effective machine for my project work.

 

[polo3400]

To help you, can you give us this information:

What are the specs for the laptop?
What anti-virus/anti-malware do you have installed?
How old is the laptop?