Repeated sign-in guide

Windows 11 Login Loop Keeps Returning to Sign-In Screen

If Windows accepts your password or PIN and immediately returns to the sign-in screen, it is a login loop—not simply a PIN that is not working.

Quick answer

Start by identifying which layer is failing

What to do first

The credentials are being accepted, but Windows cannot keep the user session open. Profile, update, shell, policy, storage, or security software can be involved. Start with the least disruptive test that can separate a local problem from a wider Windows, network, printer, storage, or hardware issue.

Likely causes

What commonly produces this symptom

Common possibilities include a damaged user profile; failed update; temporary profile or permission problem; startup software; system-file or disk errors. The symptom alone does not prove which one is responsible, so use the decision path before changing several things at once.

Diagnostic path

Use evidence before the bigger fixes

Test a different account if one exists and note whether the loop affects all accounts. Use Ctrl+Alt+Delete and Recovery options, then Safe Mode. If Safe Mode signs in, disable recent startup software and check the event timing. Protect user files before creating or migrating to a new profile.

  1. Record the exact message, when it began, and any update, driver, peripheral, or network change that preceded it.
  2. Test the smallest comparison that applies: another device, account, cable, port, display, printer queue, or power source.
  3. Make one reversible change, restart or retest, and note whether the symptom changes.

Fixes

Work from safest to most invasive

Use Recovery > Startup Settings; uninstall a recent update when timing fits; run SFC and DISM from an elevated session; check storage; create a new local profile only after backing up data; avoid registry profile edits unless guided by a qualified administrator.

Use commands only when they match the evidence. An elevated Terminal may run sfc /scannow to check protected Windows files, followed by DISM /Online /Cleanup-Image /RestoreHealth when component repair is justified. Restart and test after the repair.

When to stop

Know when the next step is support

If all accounts loop, Recovery fails, or disk health is questionable, stop before a reset and seek support with a backup plan. Avoid random registry edits, unknown driver tools, manual deletion of system folders, or a Windows reset simply because the first check did not work.

Related fixes

Continue with a focused guide

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FAQ

Windows 11 Login Loop Keeps Returning to Sign-In Screen FAQ

Why does Windows 11 keep returning to the sign-in screen?

Windows accepts the credentials but the user session fails to start because of profile, update, system-file, startup, storage, or policy problems.

Is a login loop the same as a PIN problem?

No. A PIN problem occurs before successful sign-in. A login loop returns to sign-in after Windows appears to accept the credentials.

Can Safe Mode break a login loop?

Safe Mode can bypass some startup drivers and apps, helping identify whether the normal session is being blocked.

Should I create a new Windows account?

It can be a safe recovery path after protecting files, especially when only one profile loops. It does not repair a system-wide loop.

Will resetting Windows fix a login loop?

It may, but it is much more invasive. Try recovery, update rollback, file repair, and data backup first.

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