Every night? Are you a careless browser? If you set your browser to prompt for all cookies, and deny 99% of them, and practice safe surfing, a nightly run of Defender is not necessary. Nor is leaving the PCs on 24/7.
We have 2 PC's- both run xp SP3, and both have the exact version of Defender 1.1.1593.0
version 1.45.430.0 and each runs every night at 2:00AM. On one machine (laptop),
the Defender results window remains open and states that no errors were found. On
the other (desktop), that window closes after each scan, it also finds no errors.
I cannot locate a setting on Defender or in Control Panel tools (on laptop) to have
Defender close its status window when it's done executing. Windows support staff
had no idea why this is happening. Both PC's have the same security tools (McAfee,
SpyWare Blaster, AdAware, Windows Firewall). Ideas, anyone?