I bought a used laptop that comes with Windows 7. There is no original software CD so I cannot restore all the drivers for it if I re-install Windows. The seller seemed to restore all the software and windows close to factory state. But I worried about keylogging software or malware in the system since I will use the laptop to do all my financial transactions.
Is there a way to scan the computer for those rogue process? I installed Microsoft Security Essentials and have scanned the system. It looks clean. My laptop is somewhat slow so I don't want to bog it down with too many security software.