You started asking about a T5500 ,and now it's a laptop?
Unclewebb the developer of Throttlestop tracks TS questions here and at the link I provided.
Ask another question with Throttlestop and Laptop in the title.
Avast antivirus, Malwarebytes anti Malware, and Malwarebytes Anti Rootkit Beta (MBAR) alll are available for free. Ther are many others also.