For Dedicated Servers acquired before 28-10-2018 and Server Deals

This article explains how to reset the administrator password of your Dedicated Windows Server using the Windows Rescue System.

Booting the Server into the Rescue System

  • Log in to IONOS.

  • Click on the Server & Cloud tile. If you have multiple server contracts, select the desired Dedicated Server.

  • Click on the Reboot row.

  • Select the Start Recovery option.

  • In the Rescue System section, select the Windows 64-bit rescue system and click Start recovery.

The server will be booted into the rescue system. This process can take up to 10 minutes.

A temporary password is assigned for security reasons. This password is only displayed once, so make sure you make a note of it.

Connecting to the Server via VNC Client

To be able to log into the rescue system on your server, you need a VNC client such as VNC®Viewer (Freeware) or Ultra®VNC (Freeware). Proceed as follows to log into the rescue system:

VNC Viewer
  • Open the VNC Viewer.

  • In the Enter VNC Server Address or Search field, enter the IP address of the server and press Enter. The following message appears: The connection to this VNC server is not encrypted.

  • Click Continue.

  • Enter the password that you took note of.

The connection to the server is established. Next, select the desired language.

Ultra®VNC Viewer
  • Open the Ultra®VNC Viewer.

  • In the VNC Server: field, enter the IP address of the server.

  • Click Connect.

  • In the Password field, enter the password that you have written down.

  • Click Log On.

The connection to the server is established. Select the desired language.

Open Microsoft Diagnostics and Recovery Toolset

To open the Microsoft Diagnostics and Recovery Toolset:


You have selected the desired keyboard language.

You are in the Choose an option area.

  • Click Troubleshoot.

  • Click Microsoft® Diagnostics and Recovery Toolset.

  • Select the desired operating system. The Diagnostics and Recovery Toolset opens.

Changing the Administrator Password

To change the administrator password:

  • In the Diagnostics and Recovery Toolset window, select Locksmith.

  • Click Next.

  • In the Account field, select the Microsoft Windows account you want to use.

  • Enter the new password in the New Password field and repeat it.

  • Click Next.

  • Click Finish and the new password will be saved.

  • Click Close.

  • Switch to the Cloud Panel.

  • Click Actions > Restart. The Restart Server window appears. The Current operating system method is activated in this window.

  • Click Yes.

The server is restarted. You can then log on to the server with the new password.