Welcome to my personal IT blog
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How to analize memory dump file after BSOD
Recently, there was a massive failure of Windows-based systems, which led to the shutdown of many companies and their services. The reason was the update of CrowdStrike’s cyberattack protection system. In this article, I will look at how to analyze a dump file that is created by default after BSOD (Blue Screen of Death or blue screen of death is a critical error in Windows). To start the…
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Solving an issue with user profiles after Remote Desktop Services role removal
I recently received a task to remove the Remote Desktop Services role on Windows Server 2022 with the User Profile Disk configured. Initially, the task seemed simple delete the role and reboot the server. After this operation, it turned out that a profile error appears when any user logs in. I checked again to see…
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How to configure an IP address in the Windows Server
The article covers multiple ways to configure IP addresses in the Windows Server. By default, all connected interfaces try to get an IP address via DHCP. Configuring IP address via GUI The fastest way to open IP configuration settings is to right-click on the Start, then click on Run. In the opened window type ncpa.cpl…
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How to enable System Assigned Managed Identity for Azure VM
Sometimes you need to provide access to the script that runs on the Azure VM but don’t want to store credentials anywhere in the VM. The best choice is to assign a Managed Identity to the VM and provide this identity access to a resource. System-assigned Managed Identity is the easiest way to provide access…
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Azure Backup Server can’t connect to VMware Server (error code: 0x80990EF2)
Recently, I have checked an Azure Backup Server that backups VMs to Azure Recovery Vault. It didn’t work and nobody knew why it stopped to connect to the VMware server. I connected to the backup server and in the console found an error message: VMware version: 7.0.2Error: Data Protection Manager Error ID: 33623Unable to communicate…
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Windows 11 VM won’t start on different host and throw “An error occured while attempting to start the selected virtual machine”
Today I tested the fail-over of a Windows 11 VM between two Hyper-V hosts and found that the VM doesn’t start on a different host. I opened the mentioned log file and found an issue with a key protector. Text description of the error: The Host Guardian Service Client failed to unwrap a Key Protector…
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How to install Windows Update via Powershell
There is a popular opinion that Windows management means working with GUI. Using a mouse is mandatory. It was true a long time ago but now you can do anything in Windows if you use Powershell. Let’s take a look at Windows Update installation via Powershell. 1. Install PSWindowsUpdate module (one-time operation): 2. Afterward it…
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Install-Module -Name VMware.PowerCLI throws PackageManagement\Install-Package : Authenticode issuer
Recently I tried to install VMware PowerCLI for scripting some tasks for ESXi but got this error. Get-Modules doesn’t show anything. That was strange. I checked the Powershell Modules folder and found that on this host was an old installation. I have deleted all folders and re-checked if the operation was successful. Afterward, I retried…
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How to reduce VM date disk size using the example of Azure VM
Sometimes you need to change a VM data disk size, but disk expanding is a simple operation. If you need to reduce disk size, it is not an obvious operation. For example, the Azure portal shows you that this operation can’t be performed. ⚠️ Caution ⚠️ Before starting any actions with a disk, make sure…
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How to get logs in the OpenVPN Access Client
Recently, one of the L1 support team asked me to help him to diagnose the OpenVPN Access Client connection issue. I replied to him to check the logs first. I found L1 doesn’t know how to view logs. Log review is the first action in a diagnostic of any kind. In this article, I’ll show…