An on-prem Exchange or cloud Exchange Online (Microsoft 365) administrator must control user mailbox sizes. In this article, we’ll show how to get current mailbox sizes and set mailbox quotas for Exchange users. The article is divided into two parts: the first one tells how to configure mailbox size limits in an on-premises Exchange Server 2019/2016/2013, and the second one deals with mailbox size quotas in Microsoft 365 (Exchange Online).
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
- Hyper-VVMwareWindows 10Windows 11Windows Server 2016Windows Server 2019
Windows Cannot Find the Microsoft Software License Terms
April 19, 2023The error “Windows cannot find the Microsoft Software License Terms” may appear when installing the Windows 10/11 or Windows Server 2022/2019/2016 operating system on a bare-metal computer/server or on a…
This article explains how to install Windows 11 as a guest OS in a virtual machine running on VMware Workstation or VMware ESXi hypervisors. When trying to install Windows 11…
KMS Activation is designed to make it easier for enterprise customers to activate Microsoft products (FAQ: Understanding Microsoft KMS Volume Activation). This article explains how to deploy a KMS server…
- Hyper-VPowerShellVirtualizationWindows Server 2016Windows Server 2019
Poor Network Performance on Hyper-V VMs in Windows Server 2019
February 20, 2023Several times I came across a situation when files were copied much slower from/to virtual machines on a Hyper-V host running Windows Server 2019 than in a VM of the…
- PowerShellWindows 10Windows 11Windows Server 2019
Enter-PSSession: Running Remote Commands in Interactive Shell
March 15, 2024Enter-PSSession cmdlet allows you to establish a persistent interactive PowerShell session with a remote computer. All commands you enter in your command prompt are executed on the remote computer. In…
- Windows 10Windows 11Windows Server 2019Windows Server 2022
Memory Compression Process: High Memory and CPU Usage in Windows 10 and 11
March 16, 2024The Memory Compression feature in Windows 10 and 11 is used to optimize physical RAM utilization by compressing some of the pages in RAM. By using process memory compression, you…
Starting with Windows 8, Microsoft began to move classic Windows Control Panel features to the new Windows Settings panel. Each new Windows 10 build has more new options in Windows…
- Windows 10Windows 11
SSL Error: This Site Can’t Provide a Secure Connection in Chrome, Opera & Chromium
January 18, 2023For some reason, I could not open some HTTPS websites (not all of them!) on my Windows 10 laptop. When trying to open such a website in a browser, it…
- Azure and Microsoft 365ExchangeMicrosoft OfficeWindows 10Windows 11
Fix: Microsoft Outlook Search Not Working on Windows 10/11
March 17, 2024If you face any troubles when searching for email items in different Outlook versions (nothing is found, not all results are displayed, not all *.pst files used for search, not…