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Thunderbird 159 / 153.6 ESR: do you already have the NTLM and message fixes?

Mozilla shipped desktop fixes on 27 October 2026: Thunderbird 159.0 (release) and 153.6.0esr (ESR). Security advisories MFSA2026-121 and MFSA2026-122 are rated high. Sourced recap: Thunderbird 159 / 153.6 ESR — NTLM and message leaks. Confirmed scope Displaying certain messages (external OpenPGP key, mailbox paths) can

"sudo" not recognized or disabled on Windows 11: causes and solutions

Sudo for Windows lets you run a command with administrator rights from a terminal opened normally, for example sudo netstat -ab. When the command does not behave as expected, the message shown almost always points to the cause: Windows too old, feature not turned on, feature blocked by a policy, or an unexpected run mo

"Microsoft has blocked macros from running" in Office: cause and solutions

You open an Excel, Word or PowerPoint file received by email or downloaded, and a red security risk banner says: "Microsoft has blocked macros from running because the source of this file is untrusted". This is not a fault: since 2022, Office on Windows blocks VBA macros in files from the Internet by default, because t

SSH connection fails with OpenSSH on Windows 11: causes and solutions

Windows 11 includes OpenSSH as an optional feature: the client (the ssh command) to connect to another machine, and the server (the sshd service) to accept incoming connections. When the connection fails, the cause is almost always one of four things: a missing component, a stopped service, a closed firewall, or a publ

"python" opens the Microsoft Store or is not recognized on Windows: causes and solutions

You type python in a terminal and Windows opens the Microsoft Store, or the command is not found even though Python seems to be installed. Since Python 3.14, the recommended installation method on Windows is the Python install manager, which provides the python, py and pymanager commands. Most failures come from a Wind

"winget" is not recognized on Windows: causes and solutions

You type a winget command in Command Prompt or PowerShell and Windows says the term is not recognized, or the command closes without displaying anything. WinGet, the Windows package manager, is not a separate program: it ships with the App Installer component, delivered through the Microsoft Store. The fault almost alw

"Running scripts is disabled on this system" in PowerShell: causes and solutions

You run a PowerShell script (.ps1 file) provided by a tutorial, a program or your own work, and Windows PowerShell refuses to load it? This block comes from PowerShell's execution policy, a safety setting that decides whether scripts can run and whether they must be signed. This guide explains how to read this setting,

Classic Outlook keeps asking for the password: causes and solutions

Classic Outlook for Windows (Microsoft 365, Outlook 2016 to 2024) can show the password prompt in a loop: you type the password, the prompt comes back, and messages stop syncing. Microsoft lists several causes, from a password simply changed at the email provider to a Microsoft 365 account stuck in the "Need Password"

Programme impossible à désinstaller sous Windows : solutions

Cette fiche concerne les programmes de bureau sous Windows 10 et Windows 11 qui refusent de se désinstaller : bouton grisé, message d'erreur, programme de désinstallation introuvable ou programme qui reste dans la liste après la désinstallation. Elle suit les articles d'assistance de Microsoft. Pour une application ins