Advanced IT Tutorials – Windows Server, Cloud & Cybersecurity

How to Change Default Mailbox Language in Microsoft Outlook and Exchange

Learn to change default mailbox language for single or multiple users in Microsoft Outlook using web interface and PowerShell commands for Exchange Online and on-premises environments.

Fix Exchange Migration Error – Target Mailbox SMTP Proxy Missing – Exchange Online 2026

Exchange mailbox migration fails when target mailbox lacks required onmicrosoft.com SMTP proxy address. Fix by adding missing proxy addresses using PowerShell cmdlets or bulk scripts.

How to Automate Exchange Log Cleanup with PowerShell and Scheduled Tasks

Create an automated Exchange log cleanup system using PowerShell scripts and Windows Task Scheduler to prevent disk space issues and maintain server performance.

How to Fix 'Unable to Install NuGet Provider for PowerShell' Error

Resolve NuGet provider installation errors in PowerShell by enabling TLS 1.2, updating PowerShellGet modules, and troubleshooting connection issues that prevent module downloads from PowerShell Gallery.

How to Put Exchange Server in Maintenance Mode Using PowerShell

Learn to safely place Exchange Server into maintenance mode using PowerShell commands for draining services, redirecting messages, and handling DAG configurations before performing updates or maintenance tasks.

How to Disable External Access to Exchange Control Panel for Security

Secure your Exchange Server by blocking external access to the Exchange Admin Center using Client Access Rules or IIS IP restrictions to prevent brute force attacks.

How to Clean Up Exchange Server Logs Using PowerShell to Free Disk Space

Create and run PowerShell scripts to automatically clean up log files from Exchange 2013, 2016, and 2019 servers, freeing valuable disk space by safely removing old IIS, ETL, and Exchange logs.

How to Migrate Distribution Groups from On-Premises Exchange to Microsoft 365

Learn to migrate distribution groups from on-premises Exchange to Microsoft 365 using PowerShell automation, including export, recreation, membership management, and mail flow verification.

How to Configure Automatic App Downloads Policy for iOS Devices Using Intune

Create and deploy Microsoft Intune configuration profiles to control automatic app downloads on supervised iOS/iPadOS devices with group assignments and monitoring.

How to Clear Microsoft Teams Cache to Fix Performance Issues

Resolve Microsoft Teams performance problems by clearing application cache using PowerShell scripts and manual methods for both Windows and Mac systems.

Fix Lenovo SmartSense Service Auto-Lock Issue – ThinkPad/IdeaPad 2026

Lenovo Intelligent Sensing Service (SmartSense) causes unwanted screen locking on ThinkPad and IdeaPad devices. This guide provides PowerShell and Intune solutions to disable the problematic service.

Fix Windows Update Error 0x80073712 – Windows 11 2026

Error 0x80073712 occurs when Windows Update files are missing or corrupted, commonly affecting Windows 11 25H2 and 24H2 systems. Fixed through component store repair, update troubleshooter, or manual update installation.

Fix Azure AD Connect Sync Service Not Running – Windows Server 2016/2019/2022 2026

Azure AD Connect sync service fails to start automatically, preventing directory synchronization between on-premises Active Directory and Azure AD. Fix by starting the ADSync service manually and configuring proper startup settings.

How to Get Windows 11 26H1: What It Is, Who It's For, and How to Install It

Windows 11 26H1 is an ARM64-only release (Build 28000, codenamed Bromine) for Qualcomm Snapdragon X2 and Nvidia N1X devices — not a universal update. Learn what it includes and how to install it.

Fix Microsoft Account Sign-in Error KB5085516 – Windows 11 2026

Microsoft account sign-in failures showing 'no internet' error despite active connection after KB5079473 update, resolved by emergency KB5085516 patch for Windows 11 24H2/25H2.

Fix Windows Update Error 0x80070643 – Windows 10/11 2026

Windows Update error 0x80070643 indicates a fatal installation failure, commonly caused by corrupted .NET Framework, Windows Update components, or system files preventing updates from completing successfully.

Fix Microsoft Edge Error 0x800706b5 – Windows 11 2026

Microsoft Edge error 0x800706b5 occurs during browser updates due to corrupted system files or component registration issues. Fixed by running SFC scan, resetting Edge, or reinstalling browser components.

Fix BSOD Error 0x00020001 – Windows 10/11 2026

BSOD error 0x00020001 (HYPERVISOR_ERROR) occurs when Windows hypervisor crashes due to virtualization conflicts, driver issues, or hardware problems. Fix with driver updates, BIOS settings, and system repairs.

Fix Microsoft Intune Certificate Connector Configuration Failed Error – Windows Server 2019/2022 2026

Microsoft Intune Certificate Connector configuration fails due to insufficient elevated privileges during setup, even when logged in as administrator. Running the configuration wizard as administrator resolves UAC permission issues.

Fix Outlook Authentication Loop Error – Microsoft Account 2SV Issues 2026

Outlook password reset stuck in verification loop due to Microsoft account two-step verification issues. Fix authentication problems with phone verification failures and Authenticator app access.

Fix Microsoft Edge Error "This App Can't Run on Your PC" – Windows 11 2026

Resolves the "This app can't run on your PC" error that appears when clicking Widgets board links in Windows 11, typically caused by problematic Edge extensions or blocked helper applications.

Fix Windows 11 SMB Guest Access Error 0x80070005 – Network Shares 2026

Windows 11 February 2025 patch KB5035859 disabled guest SMB authentication by default, causing access denied errors when connecting to network shares. Enable AllowInsecureGuestAuth policy to restore functionality.

Fix SMB Network Folder Refresh Issues – Windows 10/11 Server 2026

Network shared folders not updating immediately due to SMB caching and offline files. Disable caching and adjust SMB client settings to force real-time folder refresh.

Fix Windows 11 Context Menu Show More Options – File Explorer 2026

Disable the condensed Windows 11 context menu to restore the full right-click menu without clicking 'Show more options' using registry modifications and command-line tools.