I would use the update via the ClamWin Portable program, but it shouldn't matter too much. I recall that in ClamWin there was some sort of build-up in the daily updates until they were compacted but it didn't affect operations. I thought it had been fixed via an addition to the ClamWin config file, but I really haven't looked at it lately. ClamWin Virus Databases is a tool to update the ClamWin antivirus database, giving your computer more protection. The ClamWin Virus Databases update inserts new virus definitions and techniques for detecting them and eliminating them in your ClamWin antivirus. How to manually update ClamWIN AV engine version to 98.6 and beyond If you want to keep using this WHS V1 add-in you have to manually update the engine. Delete this clamav.exe file and copy over the latest clamwin setup exe you downloaded and copied in step 1 to this same Application Ventana principal: ClamWin detecta todos los discos instalados; ademas, siempre apareceran la unidad de CD/DVD, y la unidad de disquete. Puede seleccionar un disco para analizar pulsando una vez sobre el, y a continuacion pulsando, ya sea el boton Analizar o el icono de analisis, o vaya a Archivo > Analizar. ClamWin Antivirus is a free antivirus solution for Windows PCs. This open-source freeware integrates with Windows Explorer and Microsoft Outlook, schedules scans, and automatically updates virus The released set (release, *-updates, and *-security) are patched for security updates. Following extensive testing of clamav and the packages that use it in the backports repository, they may be updated to a newer version. These are official Ubuntu packages and supported by community developers. Backports Database updates can also be downloaded automatically. For manual use: install the package clamav. For automated use: install the package clamav-daemon. Both methods will also install the updater clamav-freshclam. If one wants a GUI, then install the package clamtk. Using ClamAV