After converting one of my Windows hosts to a virtual machine using P2V, I found that all network adapters were missing from the Network Connections section in the Control Panel. At the same time, I see a properly installed Ethernet NIC in the Network Adapters section of the Device Manager. In my case, the problem was solved by simply resetting the network settings using the Network Reset button in the Settings pane, but I decided to go further and troubleshoot the problem.
Windows Server: Administration Guides
Step-by-step tutorials and comprehensive courses covering Windows Server installation, configuration, administration, and management. Learn to deploy server roles, manage Active Directory, configure networking, automate tasks with PowerShell, and implement security best practices for Windows Server 2012, 2016, 2019, and 2022 editions. Ideal for beginners and IT professionals seeking practical, hands-on knowledge to master Windows Server environments.
Windows 10 and 11 Tutorials for System Administrators
Guides and technical tutorials for system administrators, focusing on the configuration, deployment, and management of Windows 10 and Windows 11 desktop operating systems. Step-by-step instructions on installation, deployment, policy configuration, security hardening, and administrative tools to optimize Windows enterprise environments.
Group Policy (GPO) Guides for Admins
Clear, concise tutorials on creating and managing Group Policy Objects to control user and computer settings, enforce security, and streamline network administration in Active Directory environments.
- Configuring Firewall Rules With Group Policy
- How to Copy Files or Folders to All Computers with GPO
- Updating Group Policy Administrative Templates (ADMX) Files
- Active Directory Password Policy
- Applying Group Policy troubleshooting guidance
- Deploying printers via GPO
- Running PowerShell scripts using Group Policy
- Local Groups Policies export and import on Windows
Active Directory: Setup, Configuration, and Best Practices
Step-by-step tutorials and comprehensive resources for installing, configuring, and managing Active Directory Domain Services (AD DS). Learn how to set up domain controllers, design forest and domain structures, create users and groups, and implement security best practices.
- Updating AD Group Membership Without Restart or Logoff
- How to Detect the Source of Account Lockout in Active Directory
- Adding an Additional Domain Controller To an Existing AD Domain
- Active Directory Health Check
- Get-ADDomainController: How to Get Domain Controller Information with Powershell
- How to Transfer os Seize FSMO Roles in Active Directory
- Active Directory Backup Best Practices
- How to Reset Domain Admin Password in Active Directory
- Fix Trust Relationship Failed Issue without Domain Rejoining
- How to Extend Password Expire Date in Active Directory
- How to Find Inactive Accounts in Active Directory
Enterprise Virtualization Platforms
Expert guides and tutorials for system administrators on VMware, Hyper-V, and Proxmox virtualization. Covering installation, configuration, management, and optimization to build robust and scalable virtual environments.
PowerShell Scripting Tutorials
Practical guides to automate and manage a wide range of IT tasks using PowerShell. Learn how to streamline system administration, Active Directory, network configuration, software deployment, Microsoft 365 management, and more through powerful scripting and cmdlets.
VMware:Install and Configure Guides
Detailed walkthroughs for installing VMware ESXi, vCenter Server, and VMware Workstation Player, including configuration of virtual machines, network settings, and storage options to optimize your virtual infrastructure.
- VMware ESXi: Create VMFS Datastore on USB Drives
- Configuring iSCSI Datastore on VMware ESXi
- Add Drivers into VMWare ESXi Installation Image
- Adding Sound Controller to a VMWare VM
- Using Free VMware vSphere Hypervisor
- Adding an ESXi host to the VMware vCenter (vCSA)
- Reset VMware ESXi root password
- Disable the Virtual Machine Auto Suspend Feature in VMware Workstation/Player
- Windows 10Windows 11Windows Server 2019
Fixing VPN Error: Can’t Establish Connection, Change Network Settings
November 10, 2022I encountered a strange issue in Windows 10 when all VPN connections suddenly stopped working with the following error message:
- PowerShellWindows Server 2019Windows Server 2022
How to Enable Wireless (Wi-Fi) on Windows Server 2019/2016
June 8, 2023By default, wireless (Wi-Fi) support is disabled in all Windows Server 2022/2019/2016/2012R2 versions. If you plug a Wi-Fi network adapter (USB or PCI) into a host running Windows Server, you…
- Azure and Microsoft 365ExchangeMicrosoft OfficePowerShell
Managing Calendar Permissions on Exchange Server and Microsoft 365
March 17, 2024In this article, we’ll look at how to manage calendar permissions in on-premises Exchange Server and Microsoft 365 mailboxes using Outlook and PowerShell. We will also focus on the topic…
Wi-Fi signal strength affects the quality of your Internet connection. On Windows, you can check the current Wi-Fi signal strength in several ways. I tried to learn how to check…
- Azure and Microsoft 365ExchangeMicrosoft OfficeWindows 10
Outlook Keeps Asking for Password on Windows
March 17, 2024A widespread problem is when Outlook keeps asking for the user credentials, even if the correct password is specified. After starting Outlook successfully connects to the on-premises Exchange server (or Microsoft…
- Windows 10Windows 11
How to Share a Folder (Printer) over the Network on Windows 11/10
March 12, 2025If you want to share files or printers on a Windows computer, you can publish them as network shares and make them accessible using the SMB protocol. This article explains…
- Active DirectoryPowerShellWindows Server 2019
Create Organizational Units (OU) Structure in Active Directory with PowerShell
March 17, 2024Quite often when creating new Organizational Units (OUs), an Active Directory administrator has to create a structure of nested containers inside a new OU. For example, when a company opens…
- PowerShellWindows 10Windows 11
Windows Security Won’t Open or Shows a Blank Screen on Windows 10/ 11
March 15, 2024Windows 10 and 11 have a built-in Microsoft Defender Antivirus (quite good, I should say) managed through the Windows Security Center. In some cases, Microsoft Defender or Security control panel…
- PowerShellWindows 10Windows 11
How to Manually Install Windows Updates from CAB and MSU Files
March 17, 2024Windows updates are released as packages with the MSU or CAB file extensions. If the Windows Update service is not working (or disabled), you can manually download and install the…