User Account Control (UAC) is a default Windows security feature designed to prevent unwanted changes to the operating system. When a program tries to perform an action that requires administrator privileges, such as installing software or changing system settings, registry, or system files, UAC alerts the administrator and asks for confirmation. This reduces the risk of unauthorized changes and the execution of malicious code with administrator privileges.
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
- Active DirectoryGroup PoliciesWindows 10Windows Server 2016
Windows: Block Remote Network Access for Local User Accounts
February 27, 2023Using local accounts (including the local administrator) to access another computer over network in Active Directory environments is not recommended on a number of reasons. The same local administrator username…
Zabbix is an enterprise-level open-source monitoring system. Currently, Zabbix is one of the most popular and powerful free monitoring systems. Due to its simple installation and configuration, Zabbix may be…
- Group PoliciesPowerShellWindows 10Windows 11Windows Server 2022
How to Find Out Who Deleted a File on Windows
November 13, 2025You can use file system object access event auditing to identify which user created, deleted, or modified a specific file. In this article, we’ll show you how to configure event…
- Active DirectoryGroup PoliciesPowerShellWindows 10Windows 11Windows Server 2022
Configuring Password Expiration Notifications for AD Users
March 24, 2026Although Microsoft has removed the requirement to periodically change user passwords from its security baselines, most on-premises Active Directory domains have a policy that specifies the maximum age of a…
- Group PoliciesWindows 10Windows Server 2016
Windows Couldn’t Connect to the GPSVC Service
October 28, 2020User cannot logon to the computer due to the GPSVC (Group Policy Client service) connection error on one of the computers running Windows 10. When trying to log on with…
- Windows 10Windows 11Windows Server 2019Windows Server 2022
Reduce Large Windows.edb (Windows.db) File Size
March 15, 2024The Windows.edb file (Windows.db in Windows 11) is the location of the index database for the Windows Search service. The search index allows users to quickly search for files, emails…
- PowerShellWindows 10Windows Server 2016
How to Check or Update Java Version in Windows with PowerShell?
May 10, 2023Java Runtime Environment (JRE) is widely used on user computers to run different enterprise Java apps . However, some apps require the specific Java version and may work incorrectly in…
During a clean OS install, Windows Installer creates a special System Reserved Partition (SRP) on the MBR disk partition table. This is a hidden partition with the NTFS file system,…
- PowerShellVirtualizationVMware
VMWare Error: Unable to Access a File Since It Is Locked
March 15, 2024Very often when deleting snapshots or consolidating disks of virtual machines running on VMWare ESXi hosts, I see the “Unable to access a file since it is locked” error. This…