pc running slow, any help is appreciated

[pokerface]

Hello, my PC is running very slow, I have done all the usual but the anti-virus program as well as malwarebytes does not seem to be recognizing any intrusion. I have ran several scans with '0' infections. I have had this happen before (about 2 years) ago and you helped me with the issue and it brought my pc performance back 100% ...it was incredible! Can you help again? What do you need me to do?

[Firefox]

Hello pokerface, are you showing any signs of an infection?

Please provide following details, so that someone may be able to assist you:

• OS version including 32/64-bit
  
• Installed Security Product(s) including Firewall and Program Versions
  
• MBAM version (current 1.50.1.1100) (Free or Pro)
  
• Definition version (current 5561)
  
• How much Ram is installed