windows defender

ZDNET’s latest Windows Defender guidance argues that five optional protections in Windows Security—Controlled folder access, Memory integrity, Potentially unwanted app blocking, Smart App Control, and Tamper protection—deserve a second look because several are still disabled or conditional by...

I ran Defender Quick Scan and it worked fine Then I ran Full Scan. It found a number of problems (see attachment) But it kept stopping during the process of cleaning and asking to restart (not sure if it mean Defender or the PC) It did several times, I investigated online and I found a similar...

Windows Defender has become the center of a serious local privilege escalation story, and the uncomfortable twist is that the trusted security product is the one doing the dangerous write. According to CloudSEK’s RedSun research, a standard user can race Defender’s remediation workflow and trick...

Set Up Microsoft Defender Attack Surface Reduction Rules in Windows 10/11 Difficulty: Intermediate | Time Required: 20 minutes Microsoft Defender Attack Surface Reduction, usually called ASR rules, helps block common behaviors used by malware, ransomware, and fileless attacks before they can do...

Set Up Microsoft Defender Application Guard in Windows 10/11 for Safe Browsing Difficulty: Intermediate | Time Required: 20 minutes Microsoft Defender Application Guard is a built-in Windows security feature designed to help protect your PC when browsing untrusted websites. Instead of opening...

Microsoft has quietly updated the Defender package that should be injected into Windows installation images (WIM/VHD/ISO) used for fresh installs and deployments, delivering a new antimalware platform, engine, and security intelligence snapshot intended to close the “first‑boot” protection gap...

If your PC feels sluggish, the program you installed to keep it safe could be doing more harm than good. Background / Overview Antivirus software is one of the first things many people install on a new Windows PC. It promises constant protection — real‑time scanning, web and download filtering...

Microsoft has quietly shipped KB4052623 — an official platform update for Microsoft Defender Antivirus — that closes a widely reported scan‑skip bug while also adding a set of consequential platform changes administrators must understand before deploying it broadly. Background Shortly before...

Midcontinent Independent System Operator (MISO) has announced a strategic collaboration with Microsoft to build a cloud‑native, AI‑enabled unified data platform intended to accelerate transmission planning, improve real‑time situational awareness, and help the Midwest grid absorb surging...

Turning off Windows Security on a modern PC is something that should trigger more caution than curiosity: for most people in 2026 it remains a risky move, useful only in very narrow, controlled scenarios and never as a casual performance tweak or "clean" troubleshooting shortcut. Background...

Windows Security (Microsoft Defender) gives you multiple fast ways to scan just the folders you care about — from a single right‑click in File Explorer to scripted, enterprise‑grade scans — and understanding each method, its limits, and the operational trade‑offs can save time and prevent...

Set Up Controlled Folder Access to Stop Ransomware (and Allow Trusted Apps) Difficulty: Intermediate | Time Required: 15 minutes Controlled Folder Access (CFA) is a built-in Windows security feature designed to stop ransomware and other untrusted apps from silently modifying your important...

A growing number of Windows 11 users have reported that Microsoft Defender’s virus definitions stopped advancing after November 19, 2025 — a problem that can leave endpoints exposed if left unchecked. Reports surfaced in Chinese and international tech outlets and were confirmed by hands‑on...

A MakeUseOf writer’s deliberate experiment — uninstalling every third‑party antivirus on a Windows PC and relying solely on Microsoft Defender — produced a counterintuitive result: faster boot times, lower idle resource use, fewer nuisance alerts and no obvious infections during the test period...

I uninstalled my third‑party antivirus and — to my surprise — my PC felt faster, quieter, and no less protected; that small, impulsive change forced me to reassess a widely held belief: that piling an extra security vendor on top of Windows is always safer than trusting the built‑in stack. The...

EDR-Redir V2 is the latest proof‑of‑concept tool to exploit Windows’ new bind link facility and the cloud filter stack to create parent‑level filesystem redirections that can blind Endpoint Detection and Response (EDR) products — including a demonstrated bypass of Windows Defender on Windows 11...

If you believe the single biggest security problem for Windows is the next malware strain or a clever phishing campaign, think again — the far more dangerous factor is the set of widely repeated security myths that lull users into bad habits and create predictable attack surfaces attackers love...

I ran a full scan with Microsoft Defender on my PC and it found the file AppData\Roaming\secure\QtWebKit4.dll (Trojan:Win32/Wacatac.C!ml). But before using Defender, I had run a full scan with Malwarebytes Free and Kaspersky Free and found nothing. Why did it detect this now? Is this type of...

OpenText’s Core Threat Detection and Response has taken a significant step toward tighter Microsoft alignment, with expanded integrations that position the product as a first‑class partner for Defender for Endpoint, Microsoft Entra ID (identity), and Microsoft Security Copilot—delivered through...

Defender is present in the taskbar and system tray, and Task Manager says it's running, but when I click on it on the taskbar, it doesn't maximize. I've also tried cycling through windows using Task View, which also shows it's open, but, again, clicking on it does not bring it up like a normal...