System Requirements

Before installing Dr.Web:

•Remove any anti-virus software from your computer to prevent possible incompatibility of resident Dr.Web components.

•In Windows Server 2016, disable Windows Defender manually, using group policies.

•Install all critical updates recommended by the operating system developer. If the operating system is no longer supported, then upgrade to a newer operating system.

Dr.Web can be installed and run on a computer that meets the following minimum requirements:

Component	Requirement
CPU	An i686-compatible processor.
Free RAM	Minimum 512 MB of RAM.
Operating system	For 32-bit platforms: •Windows Server 2003 with Service Pack 1 •Windows Server 2008 with Service Pack 2 or higher For 64-bit platforms: •Windows Server 2008 with Service Pack 2 or higher •Windows Server 2008 R2 •Windows Server 2012 •Windows Server 2012 R2 •Windows Server 2016
Resolution	Minimum recommended screen resolution is 800x600.

Dr.Web Anti-virus for Windows Server is not compatible with Dr.Web for Microsoft Exchange Server, Dr.Web for IBM Lotus Domino, Dr.Web for Kerio WinRoute, Dr.Web for Kerio MailServer, Dr.Web for Microsoft ISA Server and Forefront TMG, Dr.Web for Qbik WinGate version 6.0 and earlier.

To ensure a correct operation of Dr.Web the following ports must be opened:

Purpose	Direction	Port numbers
To update (if the option to update using https is enabled)	outgoing	443
To update	outgoing	80
To send email notifications		25 or 465 (or depending on the settings of email notifications)
To connect to Dr.Web Cloud	outgoing	2075 (including UDP)

Other system requirements are similar to those for the corresponding operating system.