Windows OS Hub | Page 48 of 64 | IT knowledge base for system administrators

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.

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.

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.

Windows 10 Windows 11

Windows Defender Threat Service Has Stopped, Restart It Now

Hi, admin! I’m trying to turn on Windows Defender on Windows 10, but in the “Windows Defender Security Center”, the “Virus & threat protection” component has the message: “Threat service has been stopped. Restart it now“. If I try to restart Microsoft Defender using the appropriate button an unknown error appears: “Unexpected error. Sorry, we ran into a problem. Please try again”. How do I fix Windows Defender Antivirus? Thank you in advance!

March 15, 2024 17 comments

Windows 10 Windows Server 2016 Windows Server 2019
How to Clean Up and Compress the WinSxS Folder on Windows
March 17, 2024
In this article we will talk about the WinSxS folder in Windows, the reasons for its constant growth, and ways to clean up it. The C:\Windows\WinSxS directory is the repository…
Windows 10 Windows Server 2019
Mapped Network Drives are Not Showing in Elevated Programs
March 15, 2024
If you are using mapped network drives, you probably noticed that they are not showing in the apps running with administrator privileges (including cmd and PowerShell). The default User Account…
Virtualization VMware
Reduce Virtual Machine Disk Size (VMDK) on VMWare ESXi
March 22, 2024
In this article, we will look at how to reduce the size of a virtual machine’s hard disk (VMDK) in VMware ESXi. From the vSphere Client GUI, you cannot reduce…
Windows 10 Windows 11 Windows Server 2016 Windows Server 2019 Windows Server 2022
How to Run File Explorer Elevated (as Administrator) on Windows
March 7, 2024
File Explorer process always runs with minimal (non-elevated) privileges in Windows. Even if you click the C:\Windows\explorer.exe executable file and try to start it in the ‘Run as administrator’ mode,…
Windows 10 Windows 11 Windows Server 2019
How to Clean Up System Volume Information Folder on Windows
March 17, 2024
Windows automatically creates a hidden System Volume Information directory in the root of each connected NTFS drive (whether a local HDD/SSD drive or a removable USB drive). The size of…
Active Directory Microsoft Office PowerShell
Read and Write Excel (XLSX) Files with PowerShell
March 16, 2024
You can access the data in an Excel file directly from within PowerShell. Although PowerShell has built-in cmdlets for importing (Import-CSV) and exporting (Export-CSV) tabular data from/to CSV files, the…
Group Policies Windows 11 Windows Server 2022
How to Disable NetBIOS, LLMNR, mDNS Protocols in Windows
March 20, 2025
Broadcast protocols NetBIOS over TCP/IP, LLMNR, and mDNS (Multicast DNS) are used to resolve names in Windows networks where there is no (unavailable) DNS server (typically, these are home or…
Active Directory Group Policies Windows 10 Windows 11 Windows Server 2019
Auto Lock Computer Screen After Inactivity with GPO
March 15, 2024
Information security best practices require the computer screen to be locked when the user is inactive (idle) for some time. A Windows user can lock the computer screen themselves (using…
PowerShell Windows 11 Windows Server 2022
How to Create and Manage Scheduled Tasks with PowerShell
September 5, 2025
Rather than using the graphical Task Scheduler (taskschd.msc) snap-in or the legacy schtasks.exe console command, you can use PowerShell to manage scheduled tasks. This post will cover how to use…

Load More Posts