To update your Portable Antivirus virus definition you can do this with a few simple step. Follow this instruction:


1. Download the latest updates of VDEF file and then extract the ZIPped content. The file name should be appeared as 'vdef1.vdef'.

2. Simply, goto your Portable Antivirus system tray icon (near the clock). Right click on it and choose Updates... and click on Manual Update.

3. Choose where your VDEF file has been extracted and click Open button and wait until finish message appear.

4. And you're done updating your Portable Antivirus. You can see the date was change after the update.