Windows 11 version 23H2, much like some of the previous feature updates for Windows 11, is apparently causing performance loss, and it could have something to do with Microsoft Defender.
Windows 11 Insider build 26002 adds Energy Saver feature and more
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Windows 11 Insider build 23595 has some Copilot changes and more
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The source code for BlackLotus vulnerability leaked a few days ago, almost around the same time as Microsoft rolled out the second phase hardening of its secure boot flaw via Dynamic Windows updates.
Microsoft suggests that it finally managed to, once and for all, resolve the Defender Local Security Authority (LSA) protection off issue, which has been plaguing Windows 11 systems since March.
Microsoft has admitted that the Windows 11 security issue, wherein Defender would wrongly display LSA protection is disabled, isn't really fixed. The company has provided the same workaround.
Microsoft has confirmed it has fixed the Local Security Authority (LSA) is off issue with a recent update to Defender. The company is also pushing out new kernel-mode hardware stack protection.
Microsoft and Mozilla have managed to fix a five year old bug in Windows Defender which was causing relatively high CPU usage on Firefox compared to other browsers like Chrome and Edge.
Microsoft 365 Defender goofed up again as system admins found it is flagging legit URLs as malicious links. The company acknowledged the issue and has stated that it is looking into a fix.
Microsoft has already confirmed that a recent Defender update has been leading to an "LSA protection is off" error. The bug may also be causing another issue where TPM detection is faulty.
If you are on Windows 11, and you have encountered the LSA protection is off message recently, even though it is on, Microsoft has confirmed it's a bug. A workaround for it has also been provided.
An old, persistent "Standard hardware security not supported" bug has come back to haunt Windows 11 users according to multiple reports online. The issue is affecting those who have supported PCs.
BlackLotus, which is a bootkit, has been doing the rounds on the internet since last year. This bootkit is capable of bypassing Secure Boot, disabling BitLocker, Microsoft Defender, and more.
Microsoft has officially validated the workaround for the mayhem caused by Defender yesterday. The company has published a fix but has confirmed it can't restore the deleted shortcuts for you.
Microsoft Defender goofed up again as system admins found it was deleting shortcuts on Windows 10 from the Start menu and Taskbar. The company acknowledged the issue and has now issued a fix.
Security researchers have found that a utility inside Microsoft's own Defender anti-virus is being abused by LockBit ransomware threat actors to deliver malicious payload to victim systems.
The latest Windows Server 2022 update KB5015879 (OS Build 20348.859) is here with multiple improvements and bug fixes including performance boost in IOPS, a fix for a Defender bug, and more.
A new report suggests that Microsoft Defender has a bug which is causing it to hog the CPU resources on a system using an Intel processor, leading to reduced performance. AMD is apparently unaffected.
Windows 11 has several new security-related features. One of these features called Smart App Control that intelligently blocks suspicious apps and files blocked one of Microsoft's own files.
Microsoft Defender for Endpoint is apparently causing several issues for clients on Windows 10 20H2 systems. These issues include very high memory usage bug, black screen on boot up, and more.
Microsoft's Defender for Endpoint security solution had yet another false positive incident today as it appears to have wrongly flagged recent Google Chrome updates as "suspicious".
SmartScreen on Defender is apparently causing delayed playback issues in videos on the latest Beta Channel build 22581 for Windows 11 Insiders. For now, there is a simple workaround for the bug.
Microsoft's Defender for Endpoint security solution was detecting the company's own Office process as malware. The firm has since confirmed that this was a false positive with nothing to worry about.
A Microsoft Defender bug is creating thousands of files and clogging the boot drive on Windows Server 2016 and 2019, according to user reports. It is now being fixed via an update to the service.