Wi-Fi or VPN sign-in failing after a Windows update? What to check
When a user says their Wi-Fi or VPN stopped working after an update, there are quite a few things to check. Drivers, connection profiles, credential…
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Intune Assignment Filter Not Working: A Read-First Filter Evaluation, Include/Exclude, and Property Triage
Helpdesk: "We put an assignment filter on the Wi-Fi profile so only corporate Surface devices get it. Half the Surfaces still don't have Wi-Fi, and…
AADSTS50105 User Not Assigned to a Role for the Application: A Read-First Enterprise App Assignment Triage
Helpdesk: "Finance can't open the new expense app. Red page says AADSTS50105, the signed in user is not assigned to a role for the application. IT a…
Intune Microsoft 365 Apps Not Installing: A Read-First MSI, CDN, and Office CSP Error Triage
Helpdesk: a Required Microsoft 365 Apps assignment sits on Install pending or Waiting for install status for hours. Another device shows Failed . Ou…
Entra Connect Sync Errors Detected: A Read-First Duplicate Attribute, Soft Match, and 8344 Permission Triage
The daily email says Microsoft Entra Connect sync errors detected . Connect Health lists an AttributeValueMustBeUnique on a new hire's proxyAddresse…
Intune Configuration Profile Error 65000 or Conflict: A Read-First Per-Setting Status and MDM Event Log Triage
A Windows device shows your Intune configuration profile as Error , and the per-setting detail says 65000 or 0x87D1FDE8 (Remediation failed) . Anoth…
Intune Remediation Script Not Running: A Read-First Exit Code, Context, and HealthScripts.log Triage
You wrote a detection script and a remediation script, uploaded them as a script package under Devices > Manage devices > Scripts and remediat…
PowerShell Out-File vs Set-Content: Encoding Is the Real Difference
Set-Content and Out-File both put text into a file. On a quiet English UTF-8 machine they look interchangeable. On a Czech log, a CSV opened in Exce…
"Your Organization Has Disabled This Device" (AADSTS135011): A Read-First Entra Device Triage
A user opens Outlook or Word and gets "Something went wrong. Your organization has disabled this device. To fix this, contact your system administra…
AADSTS53003 Blocked by Conditional Access: A Read-First Sign-In Log Triage
A user forwards a screenshot: "You cannot access this right now" and, under More details , AADSTS53003: Access has been blocked by Conditional Acces…
Entra ID Break-Glass Accounts: Best Practices After Mandatory MFA
A lot of tenants still have the same break-glass setup: one cloud-only Global Admin, a long password in a safe, and "excluded from MFA" written on t…
Windows IR: системный подход. Часть 3 — задачи, автозапуск, учётные записи, журналы
Это третья часть материала, посвящённого реагированию на инциденты ИБ в Windows. Вторая часть была посвящена изоляции хоста и разбору процессов и сл…
Microsoft Graph PowerShell SDK v2: The Enterprise Automation Engine for Entra ID
The deprecation of legacy PowerShell modules (AzureAD, AzureADPreview, and MSOnline) forced identity and cloud security teams worldwide to migrate t…
The UTF-8 / Code Page Surprise That Corrupted My Log Parser
The UTF-8 / Code Page Surprise That Corrupted My Log Parser The parser wasn’t wrong. The bytes were fine. My shell lied about what “text” meant—and…
Does a shared mailbox need a license? The Exchange Online limits that decide it, plus a read-only audit
Does a shared mailbox need a license? The limits that decide it Shared mailboxes are the standard answer for info@, billing@, and the mailbox of som…
Exchange Online "mailbox full" but the online archive isn't helping - a read-first troubleshooting guide
Exchange Online "mailbox full" but the online archive isn't helping The ticket says: "Outlook says my mailbox is full. IT turned on the archive last…
Claude Code на Windows: что я прописал агенту, чтобы он перестал спотыкаться
Большая часть материалов про Claude Code написана под macOS и Linux. У меня часть задач завязана на Windows, в первую очередь браузерная автоматизац…
Windows IR: системный подход. Часть 2 — изоляция, процессы, службы
Это вторая часть материала, посвященного Windows Incident Response. Первая часть была посвящена подготовке, общим принципам расследования, фиксации…
PowerShell Measure-Object: Count Lines and Sum Folder Sizes in One Line
The PowerShell Measure-Object cmdlet turns a pile of output into a number. How many lines are in this log? How much disk does this folder eat? What'…
A Windows context menu editor in one PowerShell file
The Windows right-click menu is built from several different places, and Windows 11 hides half of it behind "Show more options". Most tools I found…
PowerShell Test-Path: Check a Path Exists Before You Act
The PowerShell Test-Path cmdlet answers one question: does this path exist? Use it before you read, write, delete, or create — so your script fails…
PowerShell Get-Content: Tail the Last Lines of Any Log
The PowerShell Get-Content cmdlet reads text from a file. For day-to-day ops you rarely need the whole file — you need the last few lines of a growi…
Windows Incident Response: системный подход. Часть 1
Недавно я писал материал о реагировании на инциденты информационной безопасности в Linux в двух частях ( одна , вторая ). Я попытался написать что-т…
Windows can decode (and encode) HEIC without ImageMagick - but your browser can't decode it at all
Someone hands you a folder of iPhone photos, every file is .heic , and the form you need to upload them to wants JPG. The usual advice is "install I…
Converting WebP to JPG on Windows with no dependencies (and the alpha channel gotcha)
Someone sends you a folder of .webp files and the upload form only takes JPG. You don't need ImageMagick for this: Windows has shipped a WebP decode…
Text to speech on Windows: the built-in voices, edge-tts, and why subtitle dubbing never fits
Narration for a video, a spoken prompt in an app, a subtitle file turned into audio: all of it starts with getting text read out and saved to a file…
The secret was correct. The first byte wasn't.
Our deploy tool pushed a fresh API token to production. It reported success. The token was correct. Every request then failed with this: Cannot conv…
Как ESP32, MQTT и PowerShell заменили мне умную розетку
Уезжал в долгий отпуск, а дома оставалась рабочая машина с RTX 5090: GPU периодически нужен для локальных моделей. Оставлять её включённой на нескол…
PowerShell Automation for Local IP Stack Resets
Windows network stack troubleshooting via the GUI is inefficient. The Windows adapter troubleshooter wastes time. The deterministic way to fix corru…
Fixing WSL 2.7.x `ERROR_FILE_NOT_FOUND` After an Update
Overview If you recently updated WSL to version 2.7.x and your distro suddenly fails to start with ERROR_FILE_NOT_FOUND , this article walks through…