760 questions with Microsoft Security | Microsoft Defender | Other tags

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Sentinel workspace tables not appearing in Defender portal advanced hunting schema

Microsoft Sentinel workspace tables are not queryable in the Defender portal advanced hunting page. The Schema tab only shows six Defender XDR tables and no workspace table group appears. Querying AzureActivity returns a semantic error saying it failed…

Microsoft Security | Microsoft Defender | Other
asked 2026-09-19T19:50:15.81+00:00
Abhijit Singh 0 Reputation points
answered 2026-09-19T21:14:33.06+00:00
Marcin Policht 108.3K Reputation points MVP Volunteer Moderator
2 answers

My computer has a virus

How to eliminate virus from my computer. I have Microsoft account and Microsoft defender did not eliminate viruses

Microsoft Security | Microsoft Defender | Other
asked 2026-09-19T18:37:30.1666667+00:00
John Lesch 0 Reputation points
answered 2026-09-19T20:59:54.2433333+00:00
Bence Weiszmann 1,730 Reputation points
1 answer

How to access Defender to update/remove materials

I seem to be unable to easily access information listed in Microsoft Defender when I want to add or change information so not sure items are being monitored.

Microsoft Security | Microsoft Defender | Other
asked 2026-09-19T19:21:36.45+00:00
Kaye Via - Mickelson 0 Reputation points
answered 2026-09-19T19:21:48.9133333+00:00

AI answer

1 answer

Account hacked

My Microsoft account was compromised (Not this one) My original Gmail sign-in was changed to an unknown alias, so Microsoft now says my original account doesn't exist. I have Microsoft security emails proving the changes. I need to speak with a support…

Microsoft Security | Microsoft Defender | Other
asked 2026-09-19T14:27:30.1933333+00:00
Suki 0 Reputation points
answered 2026-09-19T14:27:43.3266667+00:00

AI answer

3 answers

Microsoft Defender shows “Turn on virus protection” even though Defender is enabled and working

Hello, I am experiencing an issue with Microsoft Defender Antivirus on my Windows PC. Windows Security keeps showing a notification saying “Turn on virus protection” and sometimes shows “Microsoft Defender Antivirus is turned off” under Security…

Microsoft Security | Microsoft Defender | Other
asked 2026-09-17T08:30:53.85+00:00
Sai Thiha 0 Reputation points
recommended 2026-09-19T09:10:54.91+00:00
JuliaMarvin 22,710 Reputation points Volunteer Moderator
2 answers

Defender Antivirus "turned off" 25H2 26200.9168

Microsoft Defender shows as disabled even though it is active – Windows 11 25H2 Hello everyone, For some time now, I have been receiving a notification upon Windows startup stating that my antivirus protection is disabled. Under Windows Security →…

Microsoft Security | Microsoft Defender | Other
asked 2026-08-23T07:28:13.6066667+00:00
storm183 10 Reputation points
answered 2026-09-19T06:28:02+00:00
JuliaMarvin 22,710 Reputation points Volunteer Moderator
2 answers

Microsoft windows antivirus turned off but it actually on

hey ,in providers it says that microsoft av is off but when i checked it was actually on and work without any problems what's happening??

Microsoft Security | Microsoft Defender | Other
asked 2026-09-09T16:18:48.7966667+00:00
Bellahdi Youcef 10 Reputation points
answered 2026-09-19T06:25:21.9866667+00:00
JuliaMarvin 22,710 Reputation points Volunteer Moderator
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
answered 2026-09-19T06:21:49.37+00:00
JuliaMarvin 22,710 Reputation points Volunteer Moderator
4 answers One of the answers was accepted by the question author.

A repeated "Turn on virus protection" pop-up in Windows 11

My antivirus protection is enabled, but I keep getting this notification every time Windows starts up. Edition Windows 11 Pro Version 25H2 Installed on ‎04.‎02.‎2025 OS build 26200.9457 Experience Windows Feature Experience Pack 1000.26100.360.0

Microsoft Security | Microsoft Defender | Other
asked 2026-09-17T05:48:31.8+00:00
Alex Zigmar 20 Reputation points
accepted 2026-09-19T04:43:42.05+00:00
Alex Zigmar 20 Reputation points
1 answer

Trojan Detected

MS Security detects 2 Trojans on my device every time I turn it on. It scans and then says no threats detected. What should I do?

Microsoft Security | Microsoft Defender | Other
asked 2026-09-18T15:46:16.44+00:00
Blake Cumbers 0 Reputation points
answered 2026-09-18T15:46:34.8166667+00:00

AI answer

0 answers

To use a part of MDTI data to analyze our customers log in our SIEM is acceptable in Microsoft terms?

We would like to extract MDTI indicators (malicious IPs/domains) through Microsoft Graph API, store them in our SIEM not on Azure, and correlate them with customer logs for threat detection. We will not redistribute or resell the MDTI indicator feed…

Microsoft Security | Microsoft Defender | Other
asked 2026-09-17T02:11:12+00:00
nuta 0 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 f02f0209-fc67-4215-b444-2df1f06f80aa

Microsoft Security | Microsoft Defender | Other
asked 2026-09-16T20:41:17.9133333+00:00
Siebenhaar, Daniel 0 Reputation points
commented 2026-09-16T21:01:11.0033333+00:00
Siebenhaar, Daniel 0 Reputation points
2 answers

How to turn on windows defender antivirus when not option shows to turn it on

Windows defender antivirus shuts off and there is no button to open the app to turn it on. Suggestions?

Microsoft Security | Microsoft Defender | Other
asked 2026-09-16T07:40:13.9166667+00:00
Esta Bernstein 0 Reputation points
commented 2026-09-16T08:35:51.49+00:00
ApexNáV 360 Reputation points
1 answer

Attestation TPM impossible sur Black Ops 7 malgré système et BIOS entièrement à jour

Bonjour, J’ai un problème d’attestation TPM avec Call of Duty Black Ops 7. Le jeu démarre correctement, mais l’attestation échoue systématiquement et affiche le message : « Firmware du BIOS : Mise à jour requise. L’attestation a échoué. Qualité du…

Microsoft Security | Microsoft Defender | Other
asked 2026-06-12T15:34:15.19+00:00
corentin delhorbe 0 Reputation points
commented 2026-09-16T08:26:00.16+00:00
brihiez dany 0 Reputation points
1 answer

Is there security you sell for protection

Is there security u sell ? I recently got my Hotmail hacked where they got access to remand credit cards and mileage points

Microsoft Security | Microsoft Defender | Other
asked 2026-09-14T19:12:57.6766667+00:00
sally guajardo 0 Reputation points
answered 2026-09-14T19:13:09.67+00:00

AI answer

0 answers

File submission stuck "In progress" for 12 days — false positive report for developer's own installer

Hello, I submitted my own signed... — actually unsigned, first release — installer for false-positive re-evaluation on September 2, 2026. Submission ID: aa497c8c-5e93-4532-b2f7-046e6347ea8e, file name wordiv-setup.exe, detected as…

Microsoft Security | Microsoft Defender | Other
asked 2026-09-14T13:25:03.0233333+00:00
shachar perlman 0 Reputation points
0 answers

Does Microsoft Defender for Endpoint on Linux Quick Scan re-scan mounted directories after a reboot or engine update?

I would like to confirm the behavior and design specifications of Quick Scan in Microsoft Defender for Endpoint on Linux. Environment OS: Linux Microsoft Defender for Endpoint for Linux deployed Quick Scan configured to run on a scheduled…

Microsoft Security | Microsoft Defender | Other
asked 2026-09-14T02:45:24.4466667+00:00
西谷貴彦 / NISHITANI，TAKAHIKO 0 Reputation points
0 answers

How to fix? Correlation Id: 11c6a7d543af0007a899ca11af43dd01 Timestamp: 2026-09-13T18:52:10.903Z

When I am trying to sign in for device security then I get this error message

Microsoft Security | Microsoft Defender | Other
asked 2026-09-13T19:00:29.9533333+00:00
Ahamadraja Shaikh 0 Reputation points
0 answers

flasbellek trojn bulaştı temizle

flasbellek trojn bulaştı temizle nasıl temizlenir

Microsoft Security | Microsoft Defender | Other
asked 2026-09-13T16:25:21.3666667+00:00
yahya gokduman 0 Reputation points
0 answers

Urgent: Microsoft Defender Trial Signup Blocked – “Too Many Requests” Error

Hello Microsoft Community, I am trying to activate a Microsoft Defender trial, but I am unable to complete the signup process. During email verification, I receive the following error: “Too many requests, please wait and try again later.” I have…

Microsoft Security | Microsoft Defender | Other
asked 2026-09-13T03:13:09.19+00:00
Nishad P R 0 Reputation points