Windows Agent 26.1 supported platforms, requirements and recommendations

This page provides the following information for the Windows Agent:

• Supported operating systems

• Supported systems and storage

• System requirements

• Product compatibility

• Limitations

• Recommendations

The Windows Agent is installed on each Windows server that you want to back up. For more information, see Downloading and installing the Windows Agent.

Supported operating systems

The Windows Agent supports backups and recoveries for systems with the following 64-bit Microsoft Windows operating systems:

• Windows Server 2025 and Server Core 2025

• Windows Server 2022 and Server Core 2022

• Windows Server 2019 and Server Core 2019

• Windows Server 2016 and Server Core 2016

• Windows 11, version 25H2, Enterprise and Home editions ^*

• Windows 10, version 22H2, Enterprise and Home editions (UEFI, Generation 2 VM support only) ^*

^* Systems with this operating system can be recovered to hardware or to a virtual machine, but cannot be recovered to the AWS cloud.

The Windows Agent can back up servers with Windows operating systems in languages that use ASCII or double-byte characters.

Note: Double-byte characters are not supported for agent passwords used for encryption. Agent passwords can have ASCII characters only, with no spaces or angled brackets < >.

Supported systems and storage

File systems	The Windows Agent can back up servers with the NTFS file system. The Agent is not supported with the ReFS file system.
Roles and services	The Windows Agent can back up servers with the following roles and services: Active Directory Hyper-V
Volumes and storage	The Windows Agent can back up: Windows Storage Spaces Dynamic volumes (recovered as basic disks) Volumes that are encrypted using BitLocker, if they are unlocked at the time of backup. When unlocked volumes are recovered, they are not encrypted and must be re-encrypted, if desired. The Windows Agent cannot back up: iSCSI volumes Cluster shared volumes Removable drives

System requirements

Each server where the Windows Agent is installed must meet the following requirements:

• CPU and RAM to meet the basic requirements of your operating system, as prescribed by Microsoft.

• A TCP/IP stack.

• 200 MB of free disk space is required for installing the Windows Agent. Additional space is required for the agent to function. We recommend a total of at least 1 GB of free disk space for the Windows Agent.

• A minimum outbound network bandwidth of 2 Mbps to allow backups to succeed.

Traffic must be allowed to the following URLs on the following ports:

URL	Port	Direction
agentconnector.my.webrootanywhere.com	8087	Outbound
backupdevices.my.webrootanywhere.com	443	Outbound
agentkit.backupconsole.my.webrootanywhere.com	443	Outbound

Product compatibility

The Windows Agent can be installed on the same server as the following OpenText threat protection and detection products:

• Endpoint Protection agent

• DNS Protection agent

• Endpoint Detection and Response agent

• Managed Detection and Response agent

Limitations

• The Windows Agent can back up disks that are as large as 10 TB in size.

• To ensure successful disaster recoveries, back up Windows servers with a maximum of 21 volumes.

Recommendations

• If you use an antivirus program, disable real-time scanning on reads (called "outgoing" in some antivirus products).

• On a virtual machine where the Windows Agent is installed, do not take snapshots of the virtual machine memory. Virtual memory snapshots can interfere with Windows Agent backups, and are generally discouraged in production environments.