Hello, Nod32 V4.0.437 (32 bits) is running fine under Windows XP home (drive C). I recently bought a new hard drive (drive D) and installed Windows XP pro 64 bits on it so I can choose which OS to boot. If I install Nod32 64 bits on drive D, I fear it monitors also drive C. Question : Can there be issues with Nod32 (32 bits) installed on C: and Nod32 (64 bits) installed on D: ? What is the best strategy ? Thank you.