Disable Automatic Microsoft Edge Sign-In Using Windows Registry
Full guide for Windows 10/11 — using Registry policies to block account sync, disable Windows account SSO, and force Edge to operate as a local-only browser.
⚠ This guide is for system administrators and technical users.
It shows how to disable BrowserSignin, Sync, SSO, and Web Account Manager integration in Microsoft Edge.
Even if Windows is logged into a Microsoft Account, Edge can be forced to stay fully local — no auto sign-in, no sync, no profile linking.
This method uses Registry-based policies identical to enterprise deployments.
1) What This Fix Does
This article disables:
✔ Automatic Microsoft Account sign-in inside Edge
✔ Sync, profile linking and cloud data
✔ Windows SSO (Web Account Manager → Edge)
✔ “Sign in to sync” prompts
✔ Auto-created profiles from Windows login
After applying the policies, Edge behaves like:
🔒 Local-only browser
🛑 No Microsoft Account allowed
🧹 No syncing, no cloud history, no auto imports
2) Why Edge Signs In Automatically
Microsoft Edge uses Windows services such as WAM (Web Account Manager) and SSO APIs to retrieve your Microsoft credentials even if:
You never clicked “Sign in” inside Edge
You are using a local Windows account
You created a new Edge profile
By default, Edge tries to “pull” your Windows login using:
