787 questions with Microsoft Security | Microsoft Defender | Other tags

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Security Updates for Windows 10

My Windows 10 PC is enrolled for ESU and KB5126256 is installed, but I am no longer receiving security updates using Windows Update. The last security update I received using Windows Update was KB2267602 (version 1.459.576.0) which was created on 6…

Microsoft Security | Microsoft Defender | Other
asked 2026-10-08T11:11:18.6166667+00:00
John -PC 120 Reputation points
accepted 2026-10-09T08:31:01.8233333+00:00
John -PC 120 Reputation points
0 answers

BUG: After the Microsoft Defender Antivirus update - KB2267602 (version 1.459.576.0) no more updates this KB show in Windows update

After the Microsoft Defender Antivirus update - KB2267602 (version 1.459.576.0) on October 6, 2026, the antivirus definition updates via Windows Update no longer work. You have to either force the update manually from the antivirus settings or wait for…

Microsoft Security | Microsoft Defender | Other
asked 2026-10-08T18:43:02.1966667+00:00
rhadamantys 70 Reputation points
0 answers

Norton Virus Scan Not Finding Threats – What Steps Should I Follow?

Norton Antivirus may fail to detect a virus because of outdated virus definitions, disabled real-time protection, or an incomplete scan. Update Norton, enable real-time protection, restart your device, and run a Full System Scan.

Microsoft Security | Microsoft Defender | Other
asked 2026-10-08T13:16:28.02+00:00
Vferdsr Beertyu 0 Reputation points
1 answer

What Is The Worst Computer Virus One Can Get?

While only relying only on the M.D.A. as my only line of defense?,can it handle the worst computer virus one can get in 2026?,after many claims were made that the M.D.A. can handle the worst computer virus one can get,only to notice one of my downloaded…

Microsoft Security | Microsoft Defender | Other
asked 2026-10-08T03:52:52.9466667+00:00
maroner pierre 45 Reputation points
answered 2026-10-08T12:08:57.8166667+00:00
Marcin Policht 110K Reputation points MVP Volunteer Moderator
1 answer One of the answers was accepted by the question author.

How to find devices running DfE via MMA

When I log into the Defender Portal I am greeted with a yellow warning banner: I am not aware that we ever installed MMA anywhere. How can I find out which devices the banner is referring to?

Microsoft Security | Microsoft Defender | Other
asked 2026-10-07T12:55:33.9233333+00:00
Tilman Schmidt 295 Reputation points
accepted 2026-10-08T07:06:12.64+00:00
Tilman Schmidt 295 Reputation points
0 answers

Dal giorno 26/10/26 non ricevo aggiornamenti delle definizioni Defender?

Da giorno 26/10/non ricevo aggiornamenti delle definizioni Update? Ultimo è il seguente: Aggiornamento dell'intelligence sulla sicurezza per Microsoft Defender Antivirus -2267602 KB (versione 1.459.576.0) - Canale corrente (Generico) Ho eseguito tutti i…

Microsoft Security | Microsoft Defender | Other
asked 2026-10-07T20:17:48.11+00:00
Peter Esaltato 0 Reputation points
1 answer

Windows Defender full scan showing “Last scan not available” after completing with no threats found.

- Gathered details about Windows Defender quick scan and full scan behavior - Checked whether any error message was displayed during the full scan - Quick scan completes success - Requested screenshot of the “Last scan not available” message …

Microsoft Security | Microsoft Defender | Other
asked 2026-10-06T08:09:20.18+00:00
Sanjib Pradhan 0 Reputation points
answered 2026-10-06T08:09:37.1+00:00

AI answer

1 answer

Defender UWP App: "Something went wrong" on Credit Monitoring (Isolated to specific Local Profile)

Details: Hello, I am experiencing a persistent state-sync bug within the standalone Microsoft Defender app on Windows 11. Whenever I click on Credit Monitoring or Dark Web Monitoring, I instantly receive the error: "Something went wrong. Wait a bit…

Microsoft Security | Microsoft Defender | Other
asked 2026-05-28T00:27:57.4966667+00:00
Richard Hammers 70 Reputation points
answered 2026-10-05T23:08:43.32+00:00
Richard Hammers 70 Reputation points
0 answers

I cant log in to microsoft defender.

I was having issues with defender, so I repaired it, then tried again, I have reset it, still nothing, I have uninstalled and reinstalled it, nothing. I am connected to the internet. All I get is this screen telling me that I am unable to log in. Any…

Microsoft Security | Microsoft Defender | Other
asked 2026-06-24T13:34:52.2466667+00:00
Anon432 5 Reputation points
commented 2026-10-05T13:27:20.38+00:00
kirollos salama 0 Reputation points
1 answer

Vulnerability in OpenSSL (CVE-2026-28387) Path(s) : C:\Program Files\WindowsApps\Microsoft.MicrosoftOfficeHub_19.2608.49021.0_x64__8wekyb3d8bbwe\libssl-3-x64.dll

Vulnerability in OpenSSL (CVE-2026-28387) Vulnerability in OpenSSL (CVE-2026-28387) Path(s) : C:\Program Files\WindowsApps\Microsoft.MicrosoftOfficeHub_19.2608.49021.0_x64__8wekyb3d8bbwe\libssl-3-x64.dll

Microsoft Security | Microsoft Defender | Other
asked 2026-08-28T03:50:42.38+00:00
Sachin Nimsarkar 0 Reputation points
edited an answer 2026-10-05T10:00:25.6133333+00:00
Tony Thach (WICLOUD CORPORATION) 1,435 Reputation points Microsoft External Staff Moderator
1 answer One of the answers was accepted by the question author.

How do I delete Protection History in the windows defender?

Hello, Recently my windows defender protection history log has been getting larger and larger. Every time I open it it takes 5 minutes to load. I have tried: Deleting C:\ProgramData\Microsoft\Windows Defender\Scans\History in safemode (after turning…

Microsoft Security | Microsoft Defender | Other
asked 2026-10-03T14:59:05.96+00:00
mm 20 Reputation points
commented 2026-10-04T13:18:24.1066667+00:00
mm 20 Reputation points
0 answers

Does The M.D.A. Detect More in 2026, Or Still Continues on By Detecting Less?

I have the installed M.D.A. as my only line of defense and noticed in various 2026 websites run by security experts who claim that the M.D.A. in 2026 has been showing by detecting less than more and the security experts then added by saying that using a…

Microsoft Security | Microsoft Defender | Other
asked 2026-10-04T03:10:07.6666667+00:00
maroner pierre 45 Reputation points
1 answer

Waiting on Analysis for Malware File

I submitted a file for malware analysis and it's been in the pending state for 3 weeks. Is there another place to submit the file to make sure it gets checked. My submission ID is  [Removed PII]

Microsoft Security | Microsoft Defender | Other
asked 2026-09-16T20:41:17.9133333+00:00
Siebenhaar, Daniel 0 Reputation points
edited the question 2026-10-02T09:10:05.6966667+00:00
Ana Mihaila (BLUEHAWK LLC) 0 Reputation points Microsoft External Staff Moderator
0 answers

how do I access windows defender

I am not able to access windows defender on my computer.

Microsoft Security | Microsoft Defender | Other
asked 2026-10-02T08:56:15.6066667+00:00
Richard Janes 0 Reputation points
commented 2026-10-02T08:57:48.01+00:00
Richard Janes 0 Reputation points
4 answers

My Windows Security notifies me each boot up that my Windows Defender is not running

Almost every boot-up windows notifies me that Windows Defender Antivirus is not running. But when I check, it is up and running. What is causing this false notification?

Microsoft Security | Microsoft Defender | Other
asked 2026-09-16T02:33:16.3733333+00:00
manofsteelprime2025 0 Reputation points
recommended 2026-10-02T08:27:49.1233333+00:00
Ana Mihaila (BLUEHAWK LLC) 0 Reputation points Microsoft External Staff Moderator
0 answers

The connection to the outgoing smtp server was dropped. say what?

How do I prevent Windows defender from blocking my email's smtp? I get this message: "The connection to the outgoing smtp server was dropped." Currently the smtp port is 467. I try to change to 587 but no joy. However if I disable Win…

Microsoft Security | Microsoft Defender | Other
asked 2026-10-02T00:54:41.6333333+00:00
Jon W 0 Reputation points
1 answer

my windows got hacked pls unhacked it pls

hacker change email can't use my account my main account is Xbox tag name is Xcat66 last email it be in ******@gmail.com

Microsoft Security | Microsoft Defender | Other
asked 2026-10-01T23:00:29.6166667+00:00
Mikhail Moskal 0 Reputation points
answered 2026-10-01T23:00:44.95+00:00

AI answer

0 answers

[Win10 Pro] Single-clicking ANY file on my Desktop triggers a "These files might be harmful" warning, and Defender blocks VSCode/scripts. Only happens on the Desktop; D drive is completely fine. Please help!

💻 1. System Environment OS: Windows 10 Pro 22H2 (OS Build 19045.6466) Account: Local Administrator account. NOT linked to a Microsoft account (No OneDrive sync/redirection). Security Software: Windows Defender only (No third-party AV). Affected Path:…

Microsoft Security | Microsoft Defender | Other
asked 2026-10-01T12:16:53.4566667+00:00
mar 0 Reputation points
0 answers

False Positive Block & Signup Issues: New domain qemera.com flagged by SmartScreen and blocked from account creation

Hello, I am writing to request an escalation and manual review for our company's new domain, qemera.com. We are currently encountering two severe issues tied to Microsoft's security/reputation filters: SmartScreen False Positive Block: Our website was…

Microsoft Security | Microsoft Defender | Other
asked 2026-09-26T15:11:45.24+00:00
Yisehaq Mussema 0 Reputation points
commented 2026-09-30T11:05:35.69+00:00
Yisehaq Mussema 0 Reputation points
1 answer

WDSI submission successful but no record in Submission history

Hi Microsoft Support Team, I successfully submitted a false positive file through the WDSI portal (microsoft.com/wdsi/filesubmission). The web page showed the submission was completed and returned a Submission ID, but the "Submission history"…

Microsoft Security | Microsoft Defender | Other
asked 2026-08-26T07:58:35.77+00:00
microbt MBT 0 Reputation points
edited the question 2026-09-30T09:17:03.18+00:00
Ana Mihaila (BLUEHAWK LLC) 0 Reputation points Microsoft External Staff Moderator