MigrationMerlin

MigrationMerlin is a free Windows utility for moving user state between two PCs through Microsoft’s User State Migration Tool. It is best suited to sysadmins and technically confident power users who can administer both machines and arrange a local SMB connection. The focused workflow is capable and configurable, but its network and Windows requirements rule out many casual migrations.

Overview

MigrationMerlin packages Microsoft’s scanstate.exe and loadstate.exe behind an interactive text interface and numbered batch wrappers. It migrates user profiles and settings over a network, with selective profile controls and optional handling for additional Windows data. This makes it a practical fit for controlled Windows-to-Windows moves rather than a general-purpose transfer service.

Key features

The arrow-key-driven TUI and step-by-step batch wrappers give operators a defined sequence for capture and restore. Live progress, file counts, and throughput make a running job easier to monitor. Transcript logs are written to the migration folder’s Logs directory, with credentials masked, providing a useful record without exposing those values in plain text.

The toolkit can configure an SMB share on the destination PC and create a corresponding firewall rule. IncludeUsers and ExcludeUsers allow specific profiles to be migrated, avoiding an unnecessary all-user transfer. Optional controls can restrict share access to a source user and scope the firewall rule to a source IP address, sensible precautions when the transfer should be limited to one machine.

Its ExtraData option can carry taskbar pins, Wi-Fi profiles, power plans, and data covered by custom migration XML. The configured rules extend to browsers, developer tools, SSH, Git, and VSCode, which is particularly relevant to technical workstations. AES-256 encryption can protect the migration store, but losing the key leaves no recovery path, so key handling must be treated as part of the migration plan.

Both computers must run Windows 10 or Windows 11, provide administrator privileges, share a network, and permit SMB traffic on port 445. Those prerequisites are reasonable for managed environments but make the product unsuitable for cross-platform transfers or networks where SMB cannot be opened.

Pricing

There is no paid tier or quota described. The free plan is therefore the natural choice for administrators who can satisfy the technical requirements; its cost advantage does not remove the need to provide the network, permissions, and encryption-key discipline that the workflow depends on.

Platforms

MigrationMerlin runs on Windows, with both source and destination restricted to Windows 10 or Windows 11. It uses network transfer through SMB rather than a platform-neutral exchange method.

Who it's for

Choose it for repeatable workstation moves where an administrator controls both PCs, can open SMB port 445, and wants profile selection, migration extras, progress visibility, and logs. It is also a strong fit for technical users who value USMT-based control and can manage encryption keys safely.

Look elsewhere if either computer is not on Windows 10 or 11, if administrator access is unavailable, or if the transfer must cross platforms or avoid SMB. Casual users may find the prerequisites and operational responsibility disproportionate to a one-off move.

Pros and cons

Pros

• Selective profiles: IncludeUsers and ExcludeUsers prevent an unnecessarily broad migration.
• Useful workstation extras: Taskbar pins, Wi-Fi profiles, power plans, and configured application data can accompany user state.
• Operational visibility: Live throughput and file counts plus credential-masked transcript logs support monitoring and review.
• Transfer setup assistance: Automatic SMB-share and firewall configuration reduces manual preparation.
• Free and MIT-licensed: There is no software charge for deployments that meet the requirements.

Cons

• Narrow platform scope: Both PCs must use Windows 10 or Windows 11.
• Network dependency: The machines need administrator access, a shared network, and open SMB port 445.
• Irrecoverable encryption-key loss: AES-256 protection has no recovery path if its key is lost.
• Rolling-release distribution: ZIP artifacts are delivered through GitHub Releases rather than a fixed-version channel.

Alternatives

PC Migration Software is the broader category to consult when you want to compare migration tools beyond this Windows-and-SMB workflow.

IObit Uninstaller is a Windows freemium utility centered on removing applications and cleaning leftovers, so it is not a direct user-state migration substitute.

EaseUS Todo PCTrans is the better direction when a Windows transfer should use a freemium product with a 2 GB and five-program free tier, or a paid monthly plan.

Endstate suits readers seeking a self-hosted Windows option with a free plan covering unlimited machines and no limits.

ForensiT Transwiz is another free Windows profile-transfer option.

ForensiT User Profile Wizard is preferable when a GUI-only personal edition or per-seat corporate licensing matches the deployment.

ManageEngine OS Deployer is aimed at broader workstation deployment, with a free allowance of four workstations and one server.

NiloShift is worth considering for non-commercial Windows use under its MIT license.

PC Migration Pro offers a free edition for three computers and paid migration-volume tiers.

Verdict

MigrationMerlin is a strong choice for Windows administrators and power users who need selective, logged user-state moves and can control both endpoints and their SMB network. Its main reason to choose it is the combination of USMT-based migration, guided operation, and configurable extras at no software cost. Look elsewhere when you need cross-platform support, a simpler consumer workflow, or a transfer method that does not depend on administrator access and SMB port 445.