IT Guides & How-To Articles
Step-by-step installation, configuration, and best practices
IntermediateOneDrive Error 0x8004de40: Fix "Can't Connect / Can't Sign In" (2026 Playbook)
Error 0x8004de40 usually means the OneDrive sync client can't establish a secure connection to Microsoft's cloud. This g...
AdvancedKB5068787 for Windows Server 2022 (OS Build 20348.4405): Complete Deployment and Verification Guide
KB5068787 (OS Build 20348.4405) is a Windows Server 2022 cumulative security update. This guide walks you through a safe...
BeginnerWindows 11 File Explorer "White Flash" in Dark Mode: Fix the Flashbang Bug and Reduce OLED Eye Strain (2026)
If File Explorer briefly flashes bright white in Windows 11 dark mode, you're likely hitting a known regression introduc...
IntermediateWindows 11 Search Bar Not Working: 12 Fixes That Actually Work (2026)
When the Windows 11 search bar stops working, the cause is usually a stuck SearchHost process, a broken Windows Search s...
IntermediateWindows 11 Slow After Update: How to Fix Lag, High CPU, High Disk, and Stuttering (2026)
If Windows 11 became slow right after an update, the cause is usually one of three things: post-update background work (...
IntermediateOutlook Classic Search Not Working on Windows 11: Fix Indexing, OST Cache, and Windows Search (2026)
When Outlook Classic search returns no results, misses older emails, or only searches subject and sender, the problem is...
IntermediateWindows 11 25H2 Update KB5074109 Breaks Windows App Sign-In (Azure Virtual Desktop, Windows 365): Fix with OOB KB5077744
After installing KB5074109 (January 2026 Patch Tuesday), some Windows 11 25H2 and 24H2 devices can hit credential prompt...
AdvancedOutlook Classic Keeps Asking for Password (Microsoft 365): Fix Modern Auth, WAM Token Cache, and Credential Loops (2026)
Outlook Classic repeatedly asking for your Microsoft 365 password is almost never about the password itself. It is usual...
IntermediateHow to Reset ESXi Root Password Using Linux Live CD
Step-by-step guide to reset a forgotten VMware ESXi root password using a Linux Live CD. Works on ESXi 6.x, 7.x, and 8.x...
BeginnerHow to Save Microsoft Word Documents Locally by Default Instead of OneDrive
Tired of Word pushing OneDrive every time you save? Here's how to change the default save location to your local PC in j...
IntermediateHow to Secure Your Microsoft 365 Tenant in 10 Essential Steps
Microsoft 365 tenants are constantly targeted by phishing, credential theft, and business email compromise. This guide c...
IntermediateFix Winmail.dat Attachment Issue in Microsoft 365: Complete Administrator Guide
When external recipients receive Winmail.dat instead of your PDF or document attachments, the culprit is Microsoft's TNE...
BeginnerHow to Clear (Flush) the DNS Cache in Windows 10 and Windows 11: Step-by-Step Guide
Learn how to safely clear and flush the DNS cache on Windows 10 and Windows 11 to fix connectivity issues, resolve stale...
BeginnerHow to Show Hidden Files and Folders on Windows 10 & 11
Learn how to reveal hidden and protected system files on both Windows 10 and Windows 11 using built-in tools, File Explo...
BeginnerHow to Enable the Numeric Keypad Automatically on Windows 11 Startup
Learn how to configure Windows 11 to automatically activate the numeric keypad on startup - improving accessibility, l...
IntermediateFix AutoCAD Error 1730 After Windows Update
AutoCAD Error 1730 may occur after Windows updates silently reset file ownership and permissions, blocking the applicati...