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Author: IT Expert

Christian, Microsoft MVP, Veeam Vanguard & Legend (2021–2026), VMware vExpert, and Cisco Champion, shares expert guides, how-to tutorials, troubleshooting insights, and technical tips across Windows, Linux, Mac, databases, cloud, networking, hardware, and information security.

Fix unable to contact Server: This may be the server does not exist

Posted on 01/04/202623/06/2026 IT Expert By IT Expert No Comments on Fix unable to contact Server: This may be the server does not exist
Fix unable to contact Server: This may be the server does not exist

In this blog post, you will learn how to fix “Fix unable to contact Server: This may be the server does not exist.” You may have run into this error after performing a swing migration, as described in this blog post “Build a New DC vs Swing Migration: Upgrade Server OS Correctly“. Plase, see AZURE…

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Windows Server

How to fix ADDS already contain a computer account

Posted on 01/04/202623/06/2026 IT Expert By IT Expert No Comments on How to fix ADDS already contain a computer account
How to fix ADDS already contain a computer account

In this blogpost, we will learn how to fix ADDS already contain a computer account. This issue can occur after a swing migration, such as the one outlined in “Build a New DC vs Swing Migration: Upgrade Server OS Correctly“. Replacing a Domain Controller (DC) hardware is one of those tasks that looks simple but…

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Windows Server

Reset or reinstall Windows Server without deleting the VM

Posted on 25/03/202623/06/2026 IT Expert By IT Expert No Comments on Reset or reinstall Windows Server without deleting the VM
Reset or reinstall Windows Server without deleting the VM

If you have created a VM on Hyper-V, Proxmox, VMware, or XCP-ng and want to reinstall Windows, you don’t need to delete the VM or recreate it. In this guide, we will show you how to reinstall Windows directly on an existing VM while keeping the VM configuration intact. Therefore, in this guide, we will…

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Windows Server

Build a New DC vs Swing Migration: Upgrade Server OS Correctly

Posted on 25/03/202623/06/2026 IT Expert By IT Expert No Comments on Build a New DC vs Swing Migration: Upgrade Server OS Correctly
Build a New DC vs Swing Migration: Upgrade Server OS Correctly

Because unsupported operating systems (OS’) introduce security risks and can affect compliance requirements, organizations should migrate to supported versions of Windows Server. In my lab environment, the domain controllers currently run Windows Server 2022 despite not affected. I want to take advantage of the newer capabilities available in Windows Server 2025. To accomplish this, we…

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Windows Server

How to replace Veeam Recovery Orchestrator License

Posted on 11/03/202623/06/2026 IT Expert By IT Expert No Comments on How to replace Veeam Recovery Orchestrator License
How to replace Veeam Recovery Orchestrator License

During the installation of Veeam Recovery Orchestrator (VRO), I initially applied an evaluation license, which expires after 30 days. Since this is not sustainable for my lab environment, I requested an NFR (Not‑For‑Resale) license, as discussed here “how to apply and install Veeam NFR License“. Therefore, in this article, I will discuss How to replace…

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Backup

Fix failed to connect to the backup server: Make sure it is online

Posted on 11/03/202623/06/2026 IT Expert By IT Expert No Comments on Fix failed to connect to the backup server: Make sure it is online
Fix failed to connect to the backup server: Make sure it is online

Recently while I was discussing the steps on how to license Veeam Enterprise Manager and Add VBR Servers. I ran into the following error which prompted the created of this topic “Fix failed to connect to the backup server: Make sure it is online”. Please, see how to link an iPhone with Windows PC with…

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Backup

How to fix Domain Join Error during Windows Deployment

Posted on 11/03/202623/06/2026 IT Expert By IT Expert No Comments on How to fix Domain Join Error during Windows Deployment
How to fix Domain Join Error during Windows Deployment

The message “ZtiDomainJoin has attempted to join to domain” comes from Microsoft Deployment Toolkit (MDT). This happens during an automated or Lite touch OS deployment as shown in the image below. Therefore, in this guide, we shall discuss How to fix Domain Join Error during Windows Deployment. Please see how to fix the following errors…

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Windows Server

SCVMM setup Error 10421: Fix VMM Service Account conflict

Posted on 09/03/202623/06/2026 IT Expert By IT Expert No Comments on SCVMM setup Error 10421: Fix VMM Service Account conflict
SCVMM setup Error 10421: Fix VMM Service Account conflict

In this article, we shall discuss ‘SCVMM setup Error 10421: Fix VMM Service Account conflict”. System Center Virtual Machine Manager (SCVMM) is part of the System Center suite and helps to provide a unified management experience across on-premises, service provider, and the Azure cloud. Please, see SCVMM setup Fails: Fix Missing Windows ADK Deployment Files,…

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Virtualization

SCVMM setup Fails: Fix Missing Windows ADK Deployment Files

Posted on 09/03/202623/06/2026 IT Expert By IT Expert No Comments on SCVMM setup Fails: Fix Missing Windows ADK Deployment Files
SCVMM setup Fails: Fix Missing Windows ADK Deployment Files

The Windows Assessment and Deployment Kit (Windows ADK) and Windows PE add-on provide the tools you need to customize Windows images for large-scale deployment and test the quality and performance of your system, its components, and the applications running on it. In this article, we shall discuss how to fix SCVMM setup Fails: Fix Missing…

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Windows Server

Integrate Hyper-V [SCVMM] with Veeam Recovery Orchestrator

Posted on 09/03/202623/06/2026 IT Expert By IT Expert No Comments on Integrate Hyper-V [SCVMM] with Veeam Recovery Orchestrator
Integrate Hyper-V [SCVMM] with Veeam Recovery Orchestrator

In this article, we shall discuss how to Integrate Hyper-V [SCVMM] with Veeam Recovery Orchestrator. Please see how to install Veeam Recovery Orchestrator and Agents to VBR and VEM, and how to Create local Backup Repository and Add HyperV to VBR Inventory. System Center Virtual Machine Manager (VMM) centralizes and simplifies datacenter management by providing…

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Virtualization

Integrate Hyper-V: Install System Center Virtual Machine Manager

Posted on 09/03/202623/06/2026 IT Expert By IT Expert No Comments on Integrate Hyper-V: Install System Center Virtual Machine Manager
Integrate Hyper-V: Install System Center Virtual Machine Manager

System Centre Virtual Machine Manager (VMM), part of the  System Center suite is used to configure, manage, and transform traditional datacenters. VMM helps to provide a unified management experience across on-premises, service provider, and the Azure cloud. In this guide, we shall discuss how to “Integrate Hyper-V: Install System Center Virtual Machine Manager”. Please see…

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Virtualization

How to reset Microsoft 365 User Password

Posted on 03/03/202623/06/2026 IT Expert By IT Expert No Comments on How to reset Microsoft 365 User Password
How to reset Microsoft 365 User Password

Microsoft 365 (M365) is a subscription service that lets you run your organization in the cloud. This way, Microsoft takes care of the IT (underlying infrastructure) for you. In this article, we shall discuss how to reset Microsoft 365 User Password. Please, see How to reset and reinstall Windows 10 locally, how to Change expired…

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AWS/Azure/OpenShift

Inbound connection Error: Failed to Perform Scheduled Replication [Part 2]

Posted on 03/03/202623/06/2026 IT Expert By IT Expert No Comments on Inbound connection Error: Failed to Perform Scheduled Replication [Part 2]
Inbound connection Error: Failed to Perform Scheduled Replication [Part 2]

Snapshot Replication on Synology delivers fast, reliable data protection by creating schedulable, near-instantaneous backups of your critical business data. It safeguards shared folders and virtual machines stored on LUNs. This ensures your data remains secure, consistent, and readily available in the event of hardware failure, accidental deletion, ransomware, or disaster. In this article, we shall…

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Storage

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