By default, if a remote host has both IPv4 and IPv6 addresses, the Windows computer will try to connect to it using its IPv6 address. If the DNS server or mDNS protocol (on the local network) returns that the host has AAAA and A records, then by default, the connection is made to the IPv6 address contained in the AAAA record. This can be a problem for some network services or legacy apps that don’t support IPv6 (or don’t listen on that network interface). In this case, you can increase the priority of the IPv4 protocol over IPv6 in Windows.
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
In some cases, to make the Windows installer or Windows recovery environment (WinRE) see the computer’s local disks, you must load additional disk controller drivers. This often occurs on computers…
- Active DirectoryWindows 11Windows Server 2022
How to Block Common (Weak) Passwords in Active Directory
September 2, 2025Only the most basic password length, frequency, and complexity requirements can be enabled for domain users in the default Active Directory password policy. Enabling the mandatory password complexity option, which…
- Windows 11Windows Server 2022
Fix: The referenced assembly could not be found error (0x80073701) on Windows
March 25, 2025When adding or removing features/roles on Windows Server or desktop computers running Windows 10/11, you may encounter an error: The referenced assembly could not be found. Error: 0x80073701.
- Active DirectoryGroup PoliciesWindows Server 2022
Exclude a Specific User or Computer from Group Policy
March 16, 2025There are several ways to prevent certain Group Policy Object (GPO) settings from being applied to specific users and/or computers in Active Directory: Use GPO security filtering to control which…
- Active DirectoryWindows 11Windows Server 2022
AD Domain Join: Computer Account Re-use Blocked
March 16, 2025When attempting to join a computer to an Active Directory domain, an error may occur: Error 0xaac (2732): NERR_AccountReuseBlockedByPolicy: An account with the same name exists in Active Directory. Re-using…
- PowerShellWindows 11Windows Server 2022
How to Write Logs to the Windows Event Viewer from PowerShell/CMD
March 11, 2025Alternatively to using text log files in scripts, you can write event information directly to the Event Viewer logs. In this article, we’ll look at how to write logs to…
Sometimes, after you install a Windows update, you might find that the operating system, a particular program, or a driver stops working or causes conflicts. In this case, you must…
- PowerShellWindows 10Windows 11
Maximum Concurrent Connections Limit in Windows 10 and 11
February 24, 2025The number of simultaneous network connections from other computers is limited in the desktop editions of Windows. For example, only 20 simultaneous incoming sessions (connections) are supported on Windows 10…
- PowerShellWindows 11Windows Server 2022
How to Configure Windows Firewall Logging and Analyze Logs
February 17, 2025If you suspect that the built-in Windows Defender firewall is blocking network connections (from a specific program or service), it is a bad idea to disable it completely. Instead, you…