MigrationMerlin

Overview

MigrationMerlin is a free Windows utility for moving user state from one PC to another, built around Microsoft’s User State Migration Tool. It suits sysadmins and power users who can prepare both machines for a network transfer. Its selective profiles, optional encryption, and guided workflow are useful, but the Windows and SMB prerequisites make it a poor fit for casual or cross-platform moves.

Key features

An arrow-key-driven text interface and numbered batch wrappers organize migration into steps. Live progress, file counts, and throughput give operators a view of capture and restore, while transcript logs are written to the migration folder’s Logs directory with credentials masked. These are practical safeguards for a managed transfer; the actual migration engine remains Microsoft’s USMT tools, including scanstate.exe and loadstate.exe.

MigrationMerlin can configure an SMB share on the destination PC and add a firewall rule, avoiding some manual setup. IncludeUsers and ExcludeUsers allow profile selection rather than an all-or-nothing move. Optional controls can restrict share access to a source user and narrow the firewall rule to a source IP address, which is preferable when the transfer should be limited to a particular source.

ExtraData can bring along taskbar pins, Wi-Fi profiles, power plans, and items covered by custom migration XML, including configured rules for browsers, developer tools, SSH, Git, and VSCode. AES-256 encryption can protect the migration store, but losing its key leaves no recovery path. That makes key custody essential, not an optional cleanup task.

Both PCs must run Windows 10 or 11, have administrator privileges, share a network, and allow SMB port 445 between them. The requirement is reasonable in a controlled environment but rules out transfers where network access or firewall changes are unavailable.

Pricing

MigrationMerlin costs nothing. Its single free plan is MIT-licensed software for Windows 10/11 and carries no stated seat or migration quota. There is no cheaper tier that drops features: the meaningful costs are the required administrator access and network setup. ZIP downloads are attached to GitHub releases, which the project describes as rolling releases, so this is not a fixed-version release cadence.

Platforms

MigrationMerlin is for Windows PCs only, specifically Windows 10 or Windows 11 on both the source and destination. It transfers over the network using SMB, with port 445 open between the machines.

Who it's for

This is best for Windows administrators or technically confident users who need to select profiles and settings, preserve specific extras, and keep a migration’s progress and logs visible. It is not the right choice for a move between different operating systems or for PCs that cannot share an SMB connection.

Pros and cons

• Pros: Selective user profiles and ExtraData make it possible to tailor what moves rather than copy every profile indiscriminately.
• Pros: Automatic SMB share and firewall setup, plus optional source-user and source-IP restrictions, support a more controlled network transfer.
• Pros: AES-256 encryption and credential-masked logs add useful protection and operational visibility.
• Cons: Both PCs need Windows 10/11, administrator privileges, and SMB port 445 connectivity, limiting where the tool can be used.
• Cons: An encryption key cannot be recovered if lost, so encryption adds a serious key-management obligation.

Alternatives

PC Migration Software is the broader category to compare if MigrationMerlin’s Windows-and-SMB requirements do not suit your move.

• IObit Uninstaller is a Windows uninstaller rather than a user-state migration tool; choose it to remove apps and clean up leftovers instead of transferring profiles.
• EaseUS Todo PCTrans is worth comparing if you want a freemium Windows transfer product: its free tier caps transfers at 2 GB and five programs, while its monthly Pro plan is $49.95 a month.
• Endstate offers a free, unlimited-machines option as well as a cloud plan; compare it if those terms matter more than MigrationMerlin’s specified SMB workflow.
• Super Grate is another free Windows option to consider.
• ForensiT Transwiz is another free Windows option to consider.
• NiloShift has a free non-commercial MIT-licensed plan and a separate commercial license; it is a comparison point if licensing terms are central to your choice.
• PC Migration Pro has a free edition for three computers, making it an alternative to compare for a small number of machines.
• PickMeApp offers free tools with no license or expiration, another option to compare for Windows software moves.

Verdict

Choose MigrationMerlin if you need a free, selective Windows user-state migration and can provide administrator access and a same-network SMB path on both PCs. Its guided USMT workflow, migration extras, and optional encryption are useful strengths. Look elsewhere if the PCs cannot meet those prerequisites—or if you cannot safely retain an encryption key that has no recovery path.