Always empty your recycle bin
Download and install a good antivirus
Use simple tools like Ccleaner to clean your browsing history and remove junk files from your computer.
Remove programs that you don’t use from the computer
Do not fill up your desktop with bunch of icons that you never use. Delete them and keep only frequently used icons. you can always access any program from the all program menu. Frequently run update for your operating system by visiting the OS resource center.
Upgrade your Ram to meet the requirement of programs running on your computer. Always close programs that you are not using during some session to lessen the stress on the computer resources.
