For Dedicated Servers acquired before October 28, 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.