Uninstall unwanted programs. There must be a few running in your system.
Install a spyware checker software and get rid of spywares. Also scan your full system (All disks) with antivirus.
Run DE-fragmentation tool and De-fragment disks.
Increase RAM if possible.
If you follow the above guidelines, system will be faster. I suggest you to provide more details about your laptop like processor speed, Operating system installed, RAM, installed programs..etc.. So experts will be in better position to help you more.