The Trend Micro Online scan is great when you first touch a PC, but for on-going protection, there should be a good anti-virus software installed on the PC that scans in real-time.
I use AVG Anti-virus, Zone Alarm, and Ad Aware, and install all three on consumer/friend's PCs, as they are all free for personal use.
I had used Norton and McAfee (home PC) in the past, and when I installed AVG, it found several viruses in some zips that Norton and McAfee had missed.
🙂
If you don't like AVG, there are other "free" anti-virus apps out there.
🙂
And as most of us know, any anti-virus software is only as good as the last updated virus def file. I've run across PCs that had Norton on them, but the virus def file hadn't been updated in a year and a half. And they were surprised when I found several viruses on their PC. And when I ran Ad-Aware, it found 1100+ spyware/malware files.
Let's just say their PC ran a WHOLE LOT better after I was done cleaning out the viruses, spyware, and doing performance tuning.
😀