Where Does Mouse Without Borders Store Settings?
Mouse Without Borders PowerToy machine profiles and settings on Windows.
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Mouse Without Borders (the Microsoft Garage PowerToy for one keyboard and mouse across PCs) keeps machine rows, security keys, layout order and preferences in local app data per machine, arranged through the setup wizard with pairing codes.
Every linked PC holds the shared secret independently, so all machines must agree after changes. Reinstalls regenerate identity and need re-pairing with fresh codes. Clipboard and file drag contents never persist; only the pairing and layout do.
Where Mouse Without Borders stores this, by platform
%LOCALAPPDATA%\Microsoft\MouseWithoutBorders (settings and pairing per PC)
Machine layout, keys and options per install. Exact filenames vary by PowerToys release, so export or screenshot the layout before reinstalling. Re-pair every machine afterward with new codes.
Frequently asked questions
how do I move Mouse Without Borders to a new PC
Install it fresh, generate a pairing code on an existing machine, and join the new one. There is no settings file worth copying; pairing rebuilds the shared secret correctly.
why did my machines stop linking after reinstalling one
The reinstall created a new identity the others do not trust. Re-pair with a fresh code from the group. Check firewall prompts too, since the service needs LAN access on every box.
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