: Historically, Comodo has offered a server version. While newer versions focus on enterprise management, some older standalone installers may still function on 2008 R2.
: While not officially supported on server OS, some administrators have successfully installed MSE on 2008 R2. However, as of 2026, definition updates for MSE on this platform may be limited or discontinued.
: This serves as a secondary cleanup tool rather than a primary antivirus. It can be installed on Windows Server editions to scan for and remove active infections. Critical Security Considerations for 2026 Free Antivirus for Windows - Open source GPL virus scanner
Although official server-grade antivirus is usually a paid product, these tools can still provide a layer of security:
: This is an open-source scanner that is widely cited for its compatibility with Windows Server 2008 R2. Note that it is a manual scanner , meaning it does not provide real-time protection; you must schedule scans to find threats. Pro : Completely free for business use and very lightweight. Con : No real-time scanning.
While most modern free antivirus software no longer officially supports this legacy platform, a few options remain for basic protection. Top Free Antivirus Options for Windows Server 2008 R2
