Step-by-step guides and fixes for Windows Server & Active Directory, Microsoft 365 & Exchange, Microsoft Teams, Windows 10 & 11, Docker, and virtualization — written for real-world sysadmins and IT pros.https://mcsaguru.comenhttps://mcsaguru.com/fix-docker-port-already-allocatedhttps://mcsaguru.com/fix-docker-port-already-allocatedFix 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.Sat, 13 Jun 2026 00:00:00 GMTDocker & ContainersDockerTroubleshootingPortsNetworkingsslsofLinuxhttps://mcsaguru.com/playwright-mcp-claude-code-browser-testinghttps://mcsaguru.com/playwright-mcp-claude-code-browser-testingAdd the Playwright MCP server so Claude Code can drive a real browser — navigate, click, screenshot, assert. The verify-my-change loop, headless vs headed, WSL notes.Sat, 13 Jun 2026 00:00:00 GMTAI Coding Tools & ModelsClaude CodePlaywrightMCPBrowser TestingWSLWindows 11AI Codinghttps://mcsaguru.com/claude-code-mcp-postgres-database-workflowhttps://mcsaguru.com/claude-code-mcp-postgres-database-workflowConnect Postgres to Claude Code with an MCP server the safe way — read-only roles, non-prod targets, schema inspection, and query workflows on Windows and WSL.Fri, 12 Jun 2026 18:00:00 GMTAI Coding Tools & ModelsClaude CodePostgreSQLMCPDatabaseAI CodingWSLSecurityhttps://mcsaguru.com/opencode-custom-providers-setuphttps://mcsaguru.com/opencode-custom-providers-setupConfigure OpenCode to use DeepSeek, GLM, Kimi, or Qwen through custom providers. opencode.json with the OpenAI-compatible SDK, model IDs, API keys, and fixes.Fri, 12 Jun 2026 16:00:00 GMTAI Coding Tools & ModelsOpenCodeDeepSeekGLMQwenAI CodingWindows 11Open Sourcehttps://mcsaguru.com/automate-docker-workflows-claude-code-mcphttps://mcsaguru.com/automate-docker-workflows-claude-code-mcpUse Claude Code with an MCP server to inspect containers, read logs, and debug Docker on Windows and WSL — what to connect, safe scope, and example workflows.Fri, 12 Jun 2026 12:00:00 GMTAI Coding Tools & ModelsClaude CodeDockerMCPDevOpsAI CodingWSLContainershttps://mcsaguru.com/convert-heic-to-jpg-windows-freehttps://mcsaguru.com/convert-heic-to-jpg-windows-freeConvert HEIC to JPG free on Windows using WSL. 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Trade-offs, when each fits, and a worktree setup for Windows and WSL.Fri, 12 Jun 2026 00:00:00 GMTAI Coding Tools & ModelsClaude CodeSubagentsGit WorktreesParallel AgentsAI CodingWSLhttps://mcsaguru.com/find-bitlocker-recovery-keyhttps://mcsaguru.com/find-bitlocker-recovery-keyLocked out by BitLocker? Find your recovery key from a Microsoft account, Entra ID, Active Directory, or a printout — and learn why it's asked for after BIOS changes.Fri, 12 Jun 2026 00:00:00 GMTWindows 10 & 11BitLockerRecovery KeyEncryptionMicrosoft AccountEntra IDActive Directoryhttps://mcsaguru.com/mcp-vs-plugins-which-to-use-claude-codehttps://mcsaguru.com/mcp-vs-plugins-which-to-use-claude-codeMCP servers and plugins solve overlapping problems in Claude Code. When to add a raw MCP server, when a plugin makes sense, and how to keep your context lean.Thu, 11 Jun 2026 18:00:00 GMTAI Coding Tools & ModelsClaude CodeMCPPluginsAI CodingDeveloper WorkflowContext Windowhttps://mcsaguru.com/codex-cli-custom-provider-setuphttps://mcsaguru.com/codex-cli-custom-provider-setupConfigure OpenAI Codex CLI to use DeepSeek, Qwen, GLM, or Kimi through config.toml. Custom model_providers, base URLs, env keys, and the wire-protocol gotcha explained.Thu, 11 Jun 2026 16:00:00 GMTAI Coding Tools & ModelsCodex CLIDeepSeekQwenOpenAI CompatibleAI CodingWindows 11config.tomlhttps://mcsaguru.com/claude-skills-vs-claude-code-vs-projectshttps://mcsaguru.com/claude-skills-vs-claude-code-vs-projectsClaude Skills, Claude Code, and Projects get confused constantly. What each one is, where they overlap, and which to use for repeatable work versus coding.Thu, 11 Jun 2026 12:00:00 GMTAI Coding Tools & ModelsClaude CodeAgent SkillsClaude ProjectsAI CodingAnthropicProductivityhttps://mcsaguru.com/compress-images-without-losing-quality-windowshttps://mcsaguru.com/compress-images-without-losing-quality-windowsCompress images without losing quality on Windows free using WSL. Lossless JPG and PNG optimization with jpegoptim, optipng, and ImageMagick — all offline, no uploads.Thu, 11 Jun 2026 08:00:00 GMTWindows 10 & 11WSLImage OptimizationjpegoptimoptipngImageMagickWindows 11Lossless Compressionhttps://mcsaguru.com/how-to-build-a-custom-subagent-claude-codehttps://mcsaguru.com/how-to-build-a-custom-subagent-claude-codeStep-by-step guide to building a custom Claude Code subagent: write the frontmatter, a focused system prompt, scope tools tightly, test delegation, and iterate.Thu, 11 Jun 2026 06:00:00 GMTAI Coding Tools & ModelsClaude CodeSubagentsCustom AgentsAI CodingDeveloper WorkflowWindows 11https://mcsaguru.com/how-to-write-a-claude-code-skillhttps://mcsaguru.com/how-to-write-a-claude-code-skillBuild your own Claude Code Skill from scratch — create a SKILL.md, write a description that triggers it, structure the instructions, add scripts, test it, and share it.Thu, 11 Jun 2026 00:00:00 GMTAI Coding Tools & ModelsClaude CodeAgent SkillsSKILL.mdAI CodingSkill AuthoringWSLhttps://mcsaguru.com/set-up-auto-attendant-microsoft-teamshttps://mcsaguru.com/set-up-auto-attendant-microsoft-teamsSet up a Teams auto attendant the right way: resource accounts, the free virtual user license, business hours, holidays, dial-by-key menus, and call queue routing.Thu, 11 Jun 2026 00:00:00 GMTMicrosoft TeamsMicrosoft TeamsTeams PhoneAuto AttendantResource AccountsCall QueuesVoicehttps://mcsaguru.com/claude-code-plugins-vs-skills-vs-mcp-explainedhttps://mcsaguru.com/claude-code-plugins-vs-skills-vs-mcp-explainedPlugins, skills, and MCP servers sit at different layers in Claude Code. What each is, how they nest, and a clear guide to which one you actually need.Wed, 10 Jun 2026 18:00:00 GMTAI Coding Tools & ModelsClaude CodePluginsAgent SkillsMCPAI CodingDeveloper Workflowhttps://mcsaguru.com/claude-code-router-wsl-installhttps://mcsaguru.com/claude-code-router-wsl-installInstall Claude Code Router on WSL and route Claude Code to DeepSeek, GLM, Qwen, or Kimi. Node setup, config.json, env vars, and the WSL-specific gotchas to avoid.Wed, 10 Jun 2026 16:00:00 GMTAI Coding Tools & ModelsClaude Code RouterWSLClaude CodeDeepSeekAI CodingWindows 11CCRhttps://mcsaguru.com/set-up-claude-md-project-memoryhttps://mcsaguru.com/set-up-claude-md-project-memoryCLAUDE.md gives Claude Code persistent project context. Where it lives, what to put in it, the user vs project files, imports, and how to keep it lean and useful.Wed, 10 Jun 2026 12:00:00 GMTAI Coding Tools & ModelsClaude CodeCLAUDE.mdProject MemoryAI CodingWindows 11WSLhttps://mcsaguru.com/convert-webp-to-jpg-png-windowshttps://mcsaguru.com/convert-webp-to-jpg-png-windowsConvert WebP to JPG or PNG free on Windows using WSL. Use dwebp for PNG, ImageMagick for JPG, batch a whole folder, and keep every file local — no uploads.Wed, 10 Jun 2026 08:00:00 GMTWindows 10 & 11WSLWebPdwebpImageMagickImage ConversionWindows 11Linux Toolshttps://mcsaguru.com/customize-claude-code-statusline-windowshttps://mcsaguru.com/customize-claude-code-statusline-windowsSet up a custom Claude Code status line on Windows and WSL — show model, context, cost, and git branch. The settings config, a working script, and the gotchas.Wed, 10 Jun 2026 06:00:00 GMTAI Coding Tools & ModelsClaude CodeStatus LineAI CodingWindows 11WSLTerminalhttps://mcsaguru.com/create-custom-slash-commands-claude-codehttps://mcsaguru.com/create-custom-slash-commands-claude-codeBuild your own Claude Code slash commands — markdown prompt files in .claude/commands, arguments, namespacing, and when a command beats a skill. With examples.Wed, 10 Jun 2026 00:00:00 GMTAI Coding Tools & ModelsClaude CodeSlash CommandsAI CodingDeveloper WorkflowWindows 11WSLhttps://mcsaguru.com/cutover-migration-to-microsoft-365https://mcsaguru.com/cutover-migration-to-microsoft-365A complete cutover migration guide for Microsoft 365: when it fits, the right step order, MX and autodiscover changes, and the pitfalls to avoid.Wed, 10 Jun 2026 00:00:00 GMTMicrosoft 365 & ExchangeCutover MigrationMicrosoft 365Exchange OnlineExchange MigrationMX RecordsAutodiscoverMailbox Migrationhttps://mcsaguru.com/install-claude-code-plugins-marketplace-guidehttps://mcsaguru.com/install-claude-code-plugins-marketplace-guideInstall Claude Code plugins step by step — add a marketplace, browse with /plugin, install and manage plugins, and build your own marketplace to share a setup.Tue, 09 Jun 2026 18:00:00 GMTAI Coding Tools & ModelsClaude CodePluginsMarketplaceAI CodingWindows 11WSLhttps://mcsaguru.com/claude-code-router-setup-windowshttps://mcsaguru.com/claude-code-router-setup-windowsInstall and configure Claude Code Router on Windows to route Claude Code to DeepSeek, GLM, Qwen, Kimi, and more. Full config.json, per-task routing, and fixes.Tue, 09 Jun 2026 16:00:00 GMTAI Coding Tools & ModelsClaude Code RouterClaude CodeDeepSeekQwenAI CodingWindows 11CCRhttps://mcsaguru.com/top-claude-code-statusline-setups-2026https://mcsaguru.com/top-claude-code-statusline-setups-2026The Claude Code status line setups worth copying in 2026 — minimal, cost-aware, git-focused, and powerline styles — plus what each field is good for.Tue, 09 Jun 2026 12:00:00 GMTAI Coding Tools & ModelsClaude CodeStatus LineAI CodingTerminalProductivityCustomizationhttps://mcsaguru.com/bulk-convert-png-to-webp-windowshttps://mcsaguru.com/bulk-convert-png-to-webp-windowsBulk convert PNG to WebP on Windows free with WSL and cwebp. Batch a whole folder, use lossless for graphics, and keep every file on your own machine — no uploads.Tue, 09 Jun 2026 08:00:00 GMTWindows 10 & 11WSLWebPcwebpPNGImage OptimizationWindows 11Batch Conversionhttps://mcsaguru.com/best-claude-code-skills-for-devopshttps://mcsaguru.com/best-claude-code-skills-for-devopsClaude Code Skills for IT and infra work — Docker, Kubernetes, Terraform, CI/CD, shell hardening, and incident runbooks — with example SKILL.md description lines.Tue, 09 Jun 2026 06:00:00 GMTAI Coding Tools & ModelsClaude CodeAgent SkillsDevOpsDockerKubernetesTerraformCI/CDhttps://mcsaguru.com/best-mcp-servers-for-sysadmins-devopshttps://mcsaguru.com/best-mcp-servers-for-sysadmins-devopsThe MCP servers worth adding to Claude Code for ops work: filesystem, GitHub, Postgres, SQLite, Docker, fetch, Sentry, and Playwright — with honest caveats.Tue, 09 Jun 2026 00:00:00 GMTAI Coding Tools & ModelsMCPDevOpsSysadminClaude CodeDockerPostgreSQLAI Codinghttps://mcsaguru.com/fix-sysvol-netlogon-missing-domain-controllerhttps://mcsaguru.com/fix-sysvol-netlogon-missing-domain-controllerSYSVOL or NETLOGON missing on a domain controller? Learn to diagnose DFSR vs FRS, check the shares, and run authoritative or non-authoritative sync to recover.Tue, 09 Jun 2026 00:00:00 GMTWindows Server & Active DirectoryActive DirectorySYSVOLNETLOGONDFSRFRSGroup PolicyReplicationhttps://mcsaguru.com/best-claude-code-slash-commands-2026https://mcsaguru.com/best-claude-code-slash-commands-2026The built-in and custom Claude Code slash commands worth knowing in 2026 — context, cost, model switching, clear, plus custom commands you should build.Mon, 08 Jun 2026 18:00:00 GMTAI Coding Tools & ModelsClaude CodeSlash CommandsAI CodingProductivityDeveloper WorkflowCLIhttps://mcsaguru.com/use-cheap-ai-models-with-claude-codehttps://mcsaguru.com/use-cheap-ai-models-with-claude-codeRun Claude Code on cheaper models like DeepSeek, GLM, Kimi, and Qwen. The three connection methods, pricing and coding plans compared, and how to set it up on Windows.Mon, 08 Jun 2026 16:00:00 GMTAI Coding Tools & ModelsClaude CodeDeepSeekGLMKimiQwenAI CodingWindows 11https://mcsaguru.com/best-claude-code-hooks-examples-2026https://mcsaguru.com/best-claude-code-hooks-examples-2026Practical Claude Code hook examples worth copying — auto-format, block destructive commands, notify on stop, log activity, and load context on session start.Mon, 08 Jun 2026 12:00:00 GMTAI Coding Tools & ModelsClaude CodeHooksAutomationAI CodingDevOpsGuardrailshttps://mcsaguru.com/convert-jpg-to-webp-free-wslhttps://mcsaguru.com/convert-jpg-to-webp-free-wslConvert JPG to WebP free on Windows with WSL and cwebp. One command per file, a batch loop for whole folders, and no uploads — your images never leave your PC.Mon, 08 Jun 2026 08:00:00 GMTWindows 10 & 11WSLWebPcwebpImage ConversionWindows 11Image OptimizationLinux Toolshttps://mcsaguru.com/best-claude-code-plugins-2026https://mcsaguru.com/best-claude-code-plugins-2026The Claude Code plugins actually worth checking in 2026, with install commands, source links, and why GitHub, Playwright, LSP, security, review, docs, and workflow plugins make the cut.Mon, 08 Jun 2026 06:00:00 GMTAI Coding Tools & ModelsClaude CodePluginsMarketplaceAI CodingDeveloper WorkflowMCPhttps://mcsaguru.com/best-claude-code-subagents-2026https://mcsaguru.com/best-claude-code-subagents-2026The most useful Claude Code subagent patterns for 2026: code reviewer, test writer, debugger, security auditor, docs writer, refactorer, and explorer — with tools and models.Mon, 08 Jun 2026 00:00:00 GMTAI Coding Tools & ModelsClaude CodeSubagentsCode ReviewTestingAI CodingDeveloper Workflowhttps://mcsaguru.com/install-proxmox-ve-bare-metalhttps://mcsaguru.com/install-proxmox-ve-bare-metalInstall Proxmox VE on a physical server from scratch: write the ISO to USB, boot the installer, pick ext4 or ZFS, set the network, and reach the web GUI on port 8006.Mon, 08 Jun 2026 00:00:00 GMTProxmox VEProxmox VEBare MetalHypervisorZFSInstallationHomelabVirtualizationhttps://mcsaguru.com/create-external-virtual-switch-hyper-vhttps://mcsaguru.com/create-external-virtual-switch-hyper-vCreate an external virtual switch in Hyper-V the right way. Switch types compared, Hyper-V Manager and New-VMSwitch steps, and how to avoid losing host network.Sun, 07 Jun 2026 00:00:00 GMTVirtualization (Hyper-V, VMware, VirtualBox)Hyper-VVirtual SwitchNetworkingPowerShellNew-VMSwitchWindows ServerWindows 11https://mcsaguru.com/install-docker-ubuntu-serverhttps://mcsaguru.com/install-docker-ubuntu-serverInstall Docker on Ubuntu Server the right way: add the official apt repo and GPG key, install docker-ce plus the Compose plugin, and verify it works.Sat, 06 Jun 2026 00:00:00 GMTDocker & ContainersDockerUbuntuUbuntu ServeraptDocker EngineDocker ComposeLinuxhttps://mcsaguru.com/upgrade-windows-10-to-windows-11https://mcsaguru.com/upgrade-windows-10-to-windows-11Step-by-step guide to upgrading Windows 10 to Windows 11: check TPM 2.0 and Secure Boot, run PC Health Check, pick an upgrade path, and handle unsupported PCs.Fri, 05 Jun 2026 00:00:00 GMTWindows 10 & 11Windows 11Windows 10TPM 2.0Secure BootUpgradePC Health Checkhttps://mcsaguru.com/fix-teams-camera-not-workinghttps://mcsaguru.com/fix-teams-camera-not-workingTeams 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.Thu, 04 Jun 2026 00:00:00 GMTMicrosoft TeamsMicrosoft TeamsCameraWebcamWindows PrivacyTroubleshootingDevice SettingsDrivershttps://mcsaguru.com/create-shared-mailbox-microsoft-365https://mcsaguru.com/create-shared-mailbox-microsoft-365Create a shared mailbox in Microsoft 365 the right way: admin center and Exchange admin center steps, Full Access vs Send As permissions, and the 50GB license rule.Wed, 03 Jun 2026 00:00:00 GMTMicrosoft 365 & ExchangeShared MailboxMicrosoft 365Exchange OnlineExchange Admin CenterMailbox PermissionsOutlookPowerShellhttps://mcsaguru.com/powershell-output-truncatedhttps://mcsaguru.com/powershell-output-truncatedFix truncated PowerShell output in the console, text files, and reports with Format-Table -Wrap, Out-File -Width, CSV exports, and FormatEnumerationLimit.Tue, 02 Jun 2026 00:00:00 GMTWindows 10 & 11PowerShellFormat-TableOut-FileExport-CsvWindows 10Windows 11Troubleshootinghttps://mcsaguru.com/how-to-enable-nic-teaming-in-windows-10https://mcsaguru.com/how-to-enable-nic-teaming-in-windows-10Learn what still works for NIC teaming in Windows 10, how to use New-NetSwitchTeam, when to use Windows Server LBFO instead, and how to remove a team safely.Tue, 02 Jun 2026 00:00:00 GMTWindows 10 & 11NIC TeamingPowerShellWindows 10NetworkingNetSwitchTeamLBFOHyper-Vhttps://mcsaguru.com/transfer-seize-fsmo-roleshttps://mcsaguru.com/transfer-seize-fsmo-rolesLearn the 5 FSMO roles, when to transfer them gracefully vs seize them after a DC failure, and how to do both with ntdsutil and PowerShell — safely.Tue, 02 Jun 2026 00:00:00 GMTWindows Server & Active DirectoryActive DirectoryFSMO RolesDomain ControllerntdsutilPowerShellDisaster Recoveryhttps://mcsaguru.com/microsoft-teams-meeting-not-working-troubleshootinghttps://mcsaguru.com/microsoft-teams-meeting-not-working-troubleshootingTeams 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.Sat, 30 May 2026 00:00:00 GMTMicrosoft TeamsMicrosoft TeamsMeetingsTroubleshootingTeams CacheAudio and VideoMicrosoft 365Outlook Add-inhttps://mcsaguru.com/fix-outlook-keeps-asking-password-microsoft-365https://mcsaguru.com/fix-outlook-keeps-asking-password-microsoft-365Outlook keeps asking for your Microsoft 365 password? Work through cached credentials, modern auth, MFA, and broken profiles with these step-by-step fixes.Thu, 28 May 2026 00:00:00 GMTMicrosoft 365 & ExchangeOutlookMicrosoft 365Exchange OnlineAuthenticationCredential ManagerModern AuthTroubleshootinghttps://mcsaguru.com/windows-server-2025-nic-teaminghttps://mcsaguru.com/windows-server-2025-nic-teamingSet up NIC Teaming on Windows Server 2025 with PowerShell. Learn when to use LBFO, when Hyper-V needs SET, and how to avoid common network mistakes.Tue, 26 May 2026 00:00:00 GMTWindows Server & Active DirectoryWindows Server 2025NIC TeamingLBFOSwitch Embedded TeamingSETHyper-VPowerShellNetworkinghttps://mcsaguru.com/docker-compose-beginner-guidehttps://mcsaguru.com/docker-compose-beginner-guideLearn Docker Compose from scratch: write one YAML file to run multiple containers, with a working WordPress + MySQL example and the core up/down commands.Tue, 26 May 2026 00:00:00 GMTDocker & ContainersDockerDocker ComposeContainersYAMLDevOpsWordPressMySQLhttps://mcsaguru.com/fix-virtualbox-vt-x-not-available-hyper-vhttps://mcsaguru.com/fix-virtualbox-vt-x-not-available-hyper-vVirtualBox 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.Sun, 24 May 2026 00:00:00 GMTVirtualization (Hyper-V, VMware, VirtualBox)VirtualBoxHyper-VVT-xWSL2Memory IntegrityWindows 11Troubleshooting