25 guides
Find locked-out AD accounts fast with Search-ADAccount, trace the lockout source using event ID 4740 on the PDC Emulator, and fix the cause with the right tools.
Use Reset this PC with 'Keep my files' to fix a misbehaving Windows 11 install while keeping your documents. Cloud download vs local reinstall, what's kept, what's removed.
Hyper-V VM backup failing? Work through VSS writers, integration services, checkpoint type, free space, leftover AVHDX files, and the event logs that point to the real cause.
Fix Docker's 'bind: address already in use' error: find the listener with ss or lsof, free the port or change the mapping, and bind to 127.0.0.1.
Teams screen sharing not working? Fix greyed-out Share, a black screen on share, macOS recording permission, multi-monitor scaling, plus an update and cache clear.
Teams Calendar missing? Fix it by checking the Exchange mailbox, app permission policy, license, cache, and re-pinning the Calendar app on desktop and web.
Work through why a GPO won't apply — gpupdate, gpresult, link and scope, security and WMI filtering, SYSVOL replication, slow links, and loopback — with the commands to prove it.
Fix a full Proxmox local-lvm: see why the thin pool fills, check usage with lvs and df, delete unused disks and snapshots, move storage, and stop it recurring.
Clients stuck on 169.254 addresses? Work through DHCP scope state, AD authorization, pool exhaustion, conflicts, relay/IP helper, and firewall to fix it fast.
Stuck with orphaned AVHDX files after a failed backup or checkpoint? Learn what AVHDX is and two safe ways to merge the chain back into your VHDX without data loss.
Fix the 'Cannot connect to the Docker daemon' error: check the service is running, fix socket permissions, start Docker Desktop, and verify DOCKER_HOST.
Teams microphone not working? Fix it with Windows mic privacy settings, the right device selection, a test call, headset and Bluetooth quirks, drivers, and a cache clear.
Hyper-V checkpoint failed? Fix it by checking disk space, VHDX permissions, VSS writers, and production vs standard checkpoints — with the AVHDX chain explained.
The Teams Meeting button gone from Outlook? Fix the missing add-in: enable the COM add-in, clear disabled items, match the user, re-register, and handle new Outlook.
Windows Update frozen at 0%, 30%, or 100%? Learn how to tell stuck from slow, reset the update components, run the troubleshooter, and repair files with DISM and SFC.
Microsoft 365 email not sending or receiving? Work through service health, message trace, MX and SPF, mail flow rules, quarantine, and full mailboxes step by step.
Hyper-V VM has no internet? Work through the virtual switch type, NAT setup, VM adapter, host firewall, and DNS to get your guest back online for good.
Fix Claude Code MCP servers that won't connect — the Windows cmd /c npx wrapper, PATH issues, bad commands, auth failures, and stdout corruption. Step-by-step.
Fix the Docker 'port is already allocated' error: find what's using the port with docker ps, ss, and lsof, then free it or change the mapping.
Teams camera not working? Fix it with Windows privacy settings, the right device selection, freeing a camera held by another app, drivers, and a cache clear.
Fix truncated PowerShell output in the console, text files, and reports with Format-Table -Wrap, Out-File -Width, CSV exports, and FormatEnumerationLimit.
Pillar Guide
Teams meeting not working? Fix join failures, dead camera and mic, broken screen share, audio drops, and the missing Outlook add-in with this step-by-step guide.
Outlook keeps asking for your Microsoft 365 password? Work through cached credentials, modern auth, MFA, and broken profiles with these step-by-step fixes.
VirtualBox says VT-x is not available (VERR_VMX_NO_VMX)? Here's how to free your CPU virtualization from Hyper-V, Memory Integrity, and WSL2 — and fix it for good.
Pillar Guide
A practical, step-by-step guide to diagnosing and fixing Active Directory replication error 1722 — the RPC server is unavailable — from DNS to firewall to RPC ports.