InstantLoginSwitcher

One-hotkey local user switching for Windows 11.

How it works

When you press Numpad4 + Numpad5 + Numpad6 together:

1. The tool detects which configured user is currently logged in.
2. It sets Windows AutoAdminLogon for the other configured user.
3. It force-logs out the current user.
4. Windows immediately begins signing in the other user.

This is a forced logoff + automatic sign-in to the paired account.
It is not Fast User Switching.

Requirements

• Windows 11
• AutoHotkey v2 installed
• Local Administrator rights for install/uninstall
• Two local Windows accounts to switch between (both must be in local Administrators)

Install

1. Download this repository ZIP from GitHub.
2. Unzip it anywhere.
3. Install AutoHotkey v2 (if not already installed).
4. Right-click Install-InstantLoginSwitcher.cmd and choose Run as administrator.
5. Enter the two account names and passwords when prompted. Use each account's Windows password, not a PIN.
6. Sign out and sign back in once.
7. Test the hotkey: Numpad4 + Numpad5 + Numpad6.

Uninstall

1. Right-click Uninstall-InstantLoginSwitcher.cmd and choose Run as administrator.

Uninstall removes:

• Scheduled tasks matching InstantLoginSwitcher-Hotkey-*
• Installed runtime files in C:\ProgramData\InstantLoginSwitcher
• AutoAdminLogon registry values set by this tool

Troubleshooting

• Console opens then closes:
  • Run as admin using right-click.
  • Check logs:
    • %TEMP%\InstantLoginSwitcher-install.log
    • %TEMP%\InstantLoginSwitcher-uninstall.log
• Script signing errors in PowerShell:
  • Use the .cmd files above. Do not run .ps1 directly.
• Hotkey does nothing:
  • Check tasks exist:
    • schtasks /Query /FO LIST | findstr /I "InstantLoginSwitcher-Hotkey"
  • Check switch log:
    • C:\ProgramData\InstantLoginSwitcher\switch.log