15,476 questions
1 answer
File Explorer reverts to legacy Windows 10 ribbon after KB5120998 (build 26200.9278) — 766 corrupt OOBE payloads in component store; RestoreHealth fails with 0x800f0915
Environment: Windows 11 25H2, x64. Build 26200.9278 (KB5120998) was installed on Sep 8, 2026. Symptom After the update, File Explorer opened with the legacy Windows 10 ribbon UI — no tabs, no modern command bar, no address/search band. It persisted…
Windows for home | Windows 11 | Windows update
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(115.19999999999999, 5%, 21%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ER%3C/text%3E%3C/svg%3E)
3 answers
SAME DATA FOR A GROUP
I have an Event ID and a State of Activity column. I need a formula to check to see if all records for the Event have the same State of Activity.
Microsoft 365 and Office | Excel | For business | Windows
Microsoft 365 and Office | Excel | For business | Windows
A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data
20,948 questions
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(12.8, 2%, 11%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ETR%3C/text%3E%3C/svg%3E)
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(201.6, 3%, 29%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EI%3C/text%3E%3C/svg%3E)
1 answer
My copilot app has stopped working on my laptop
when I try to load the copilot app on my laptop, I get a message saying something has gone wrong and to refresh. When I tap the refresh button nothing changes
Microsoft Copilot | Windows Copilot | App
Microsoft Copilot | Windows Copilot | App
An application or feature powered by Windows Copilot to assist users with tasks and productivity
262 questions
asked
2026-09-09T23:23:23.5633333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(246.4, 4%, 33%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ECC%3C/text%3E%3C/svg%3E)
Celia Coates
5
Reputation points
commented
2026-09-11T08:30:25.02+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(249.60000000000002, 12%, 34%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ECN%3C/text%3E%3C/svg%3E)
Clary-N
15,730
Reputation points Microsoft External Staff
Moderator
1 answer
Windows 11 TPM AIK Enrollment Fails – HTTP 400 / 0x80190190 – Intel PTT
I’m experiencing a Windows TPM/AIK attestation failure despite TPM 2.0 and Secure Boot both functioning normally. System: ASRock B860 Pro-A WiFi Intel Core Ultra 7 265F Windows 11 Home BIOS 3.32 / UEFI Intel PTT / TPM 2.0 TPM firmware:…
Windows for home | Windows 11 | Security and privacy
8,668 questions
asked
2026-09-10T12:53:41.5766667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(51.2, 85%, 14%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EBM%3C/text%3E%3C/svg%3E)
Bryan Manning
0
Reputation points
commented
2026-09-11T08:30:06+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(134.4, 38%, 23%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EA%3C/text%3E%3C/svg%3E)
麒麟 白
0
Reputation points
1 answer
my copilot on my laptop is blocked
My Copilot is blocked. Can you help me to fix it please
Microsoft Copilot | Windows Copilot | Feature
Microsoft Copilot | Windows Copilot | Feature
A specific functionality or enhancement provided by Windows Copilot
125 questions
asked
2026-09-09T23:40:16.1633333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(19.2, 35%, 11%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ELH%3C/text%3E%3C/svg%3E)
Loren Howard
0
Reputation points
commented
2026-09-11T08:29:00.7333333+00:00
Clary-N
15,730
Reputation points Microsoft External Staff
Moderator
1 answer
One of the answers was accepted by the question author.
Pluton TPM attestation fails for Call of Duty RICOCHET (Microsoft Azure Attestation) despite valid endorsement certificate
Hi, I'm running into a Microsoft Azure Attestation (MAA) failure that's blocking a third-party anti-cheat attestation check (Call of Duty RICOCHET) despite my Pluton TPM being locally healthy and fully provisioned. Device: ASUS ProArt PX13, AMD Ryzen AI,…
Azure Virtual Machines
Azure Virtual Machines
An Azure service that is used to provision Windows and Linux virtual machines.
10,341 questions
asked
2026-07-30T16:46:16.84+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(3.2, 91%, 10%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ECC%3C/text%3E%3C/svg%3E)
Claas Code
20
Reputation points
commented
2026-09-11T08:29:00.3066667+00:00
麒麟 白
0
Reputation points
2 answers
Restoring Azure Arc connectivity after service principal secret expiration
I am currently facing a global issue where Bulk azure arc server onboarding scripts are failing with the error AADSTS7000215: Invalid client secret is provided. This problem started suddenly and has disrupted all automated deployments that rely on our…
Windows for business | Windows 365 Business
2,763 questions
asked
2026-09-11T07:27:01.81+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(147.20000000000002, 31%, 24%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EBN%3C/text%3E%3C/svg%3E)
Budi Nugroho
0
Reputation points
answered
2026-09-11T08:27:29.8833333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(12.8, 62%, 11%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EH%3C/text%3E%3C/svg%3E)
HLBui
11,575
Reputation points
Independent Advisor
1 answer
AIK enrollment fails with 0x80070490 on Microsoft Pluton (EK issuer name mismatch) - blocks Call of Duty secure attestation, latest OEM BIOS does not help
My Microsoft Azure Attestation (MAA) check fails, which blocks Call of Duty (RICOCHET) secure attestation. My TPM is locally healthy and fully provisioned, and my OEM firmware is already the newest available for my model. The failure reproduces through…
Windows for home | Windows 11 | Security and privacy
8,668 questions
1 answer
Microsoft Teams Mobile Calls: Intermittent One-Way Audio on Samsung Android Devices
Hi everyone, We're experiencing a strange issue with Microsoft Teams and are wondering if anyone else has seen something similar. Users occasionally experience one-way audio during Teams-to-Teams calls. To clarify, these are not Direct Routing or PSTN…
Microsoft Teams | Microsoft Teams for business | Teams on mobile devices
Microsoft Teams | Microsoft Teams for business | Teams on mobile devices
Accessing and using Microsoft Teams on smartphones and tablets across platforms
1,455 questions
asked
2026-09-10T08:29:06.6866667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(3.2, 15%, 10%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EGD%3C/text%3E%3C/svg%3E)
Grimmen, Dennis
0
Reputation points
commented
2026-09-11T08:25:59.2+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(12.8, 69%, 11%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EHL%3C/text%3E%3C/svg%3E)
Helen Luu
2,785
Reputation points
Independent Advisor
4 answers
Not receiving password reset emails
Within the past month, I have stopped receiving password reset emails. At first I thought the problem was isolated to a single website, but I see now that it is happening across the board. It's really become a problem. What steps can I take to fix this…
Outlook | MacOS | New Outlook for Mac | For home
Outlook | MacOS | New Outlook for Mac | For home
Using the New Outlook for Mac for personal email and calendar
1,643 questions
asked
2026-06-11T01:06:12.25+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(227.2, 63%, 32%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EM%3C/text%3E%3C/svg%3E)
marygauxlightly
0
Reputation points
commented
2026-09-11T08:25:24.8633333+00:00
Hornblower409
14,600
Reputation points
1 answer
Sole administrator locked out of Microsoft Entra ID due to Authenticator MFA – Tenant Recovery assistance needed
Hello, I am the administrator of a Microsoft Entra ID tenant for a small company in Japan. I know the administrator username and password and can successfully pass the password authentication. However, after replacing my smartphone, I can no longer…
Microsoft 365 and Office | Subscription, account, billing | For business | Other
Microsoft 365 and Office | Subscription, account, billing | For business | Other
Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
18,923 questions
asked
2026-09-10T04:23:33.2166667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(156.8, 27%, 25%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EMA%3C/text%3E%3C/svg%3E)
MOMO Admin
0
Reputation points
commented
2026-09-11T08:23:09.71+00:00
Helen Luu
2,785
Reputation points
Independent Advisor
0 answers
URGENTE - Recuperación de datos de Azure VM/Managed Disk a estado anterior al 10/09/2026
Tengo una máquina virtual Azure myVm, región East US, Windows Server, donde ocurrió una eliminación accidental de información de una base de datos SQL Server. Necesito determinar si Azure conserva algún estado anterior del Managed Disk, snapshot, restore…
Azure Virtual Machines
Azure Virtual Machines
An Azure service that is used to provision Windows and Linux virtual machines.
10,341 questions
asked
2026-09-11T08:21:14.8066667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(153.6, 49%, 24%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EWC%3C/text%3E%3C/svg%3E)
William Camacho
0
Reputation points
asked
2026-09-11T08:21:14.8066667+00:00
William Camacho
0
Reputation points
2 answers
Editing Junk Email Blocked Senders and Domains in New Outlook and outlook.office.com fails with "Couldn't save changes"
I get this error in MS Edge, (New) Outlook for Windows, and Chrome for Windows. Editing any blocked sender - often removing the name (user@) to block a whole domain - fails with this error: Couldn't save changes Something went wrong. Please try again…
Outlook | Web | Outlook on the web for business | Settings
Outlook | Web | Outlook on the web for business | Settings
Configuring preferences and options in Outlook on the web for business
533 questions
asked
2026-05-11T15:51:32.29+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(67.2, 72%, 16%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ED9%3C/text%3E%3C/svg%3E)
David-9975
0
Reputation points
commented
2026-09-11T08:18:48.3333333+00:00
Hornblower409
14,600
Reputation points
3 answers
Cannot turn on Memory Integrity
Windows 11 security update fails. Memory Integrity will not turn on due to core isolation issue caused by wdcsam64_prewin8.sys driver. I went through all the suggested steps to correct the issue, restarted system and retried Windows Update. It hangs…
Windows for home | Windows 11 | Windows update
15,476 questions
asked
2026-09-11T02:49:05.1433333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(70.4, 15%, 16%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EAB%3C/text%3E%3C/svg%3E)
Annie Baxter
0
Reputation points
edited an answer
2026-09-11T08:14:59.14+00:00
Kapil Arya
38,446
Reputation points
Volunteer Moderator
1 answer
conhost.exe command line changes from "0xffffffff -ForceV1" to "0x4" in the same process
I am implementing read-only process monitoring on Windows. Microsoft consumer support referred me to Microsoft Q&A for clarification of this Windows API behavior. I observed a change in the command line returned for the same conhost.exe process,…
Windows development | Windows API - Win32
3,018 questions
asked
2026-09-11T05:29:05.5133333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(96, 30%, 19%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EKT%3C/text%3E%3C/svg%3E)
Kohei Tagami
0
Reputation points
commented
2026-09-11T08:13:50.38+00:00
RLWA32
52,821
Reputation points
0 answers
ASA parallel JOIN drops matches when the two Event Hubs inputs use different partition-key hashing
ASA job (compat 1.2) joins two Event Hubs on EntityId (both 4 partitions) into a third hub. With the input Partition key column declared (embarrassingly-parallel), the JOIN silently loses ~78% of matches — no errors. Measured: parallel ≈ 22% match,…
Azure Event Hubs
Azure Event Hubs
An Azure real-time data ingestion service.
788 questions
asked
2026-08-25T10:11:53.61+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(252.8, 25%, 34%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EAJ%3C/text%3E%3C/svg%3E)
Andrei Josephsen
0
Reputation points
commented
2026-09-11T08:13:22.95+00:00
Andrei Josephsen
0
Reputation points
0 answers
Artifact Signing organization validation failed without a reason
Our Spanish company’s public identity validation shows Failed. Neither the Azure portal nor the notification email explains why. We uploaded website and domain-ownership documents. Please confirm which check failed, what corrected evidence is required,…
Artifact Signing
Artifact Signing
A fully managed end-to-end service for digitally signing code, documents, and applications. (formerly Trusted Signing)
1,255 questions
asked
2026-09-11T08:11:28.1133333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(192, 25%, 28%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EMP%3C/text%3E%3C/svg%3E)
Miguel Pieras
0
Reputation points
asked
2026-09-11T08:11:28.1133333+00:00
Miguel Pieras
0
Reputation points
2 answers
Junk Mail - Block and Safe Senders List Error
Hi, i am having trouble removing blocked senders and domains and/or adding them as safe. It wont let me save it keep coming up with an error unable to save
Outlook | Web | Outlook.com | Account management, security, and privacy
Outlook | Web | Outlook.com | Account management, security, and privacy
Managing personal Outlook.com account settings, security, and privacy
24,512 questions
asked
2026-09-10T22:46:37.79+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(313.6, 10%, 40%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EMK%3C/text%3E%3C/svg%3E)
Michael Kay
0
Reputation points
answered
2026-09-11T08:11:00.4866667+00:00
Hornblower409
14,600
Reputation points
2 answers
Azure Support Case — Container Apps Environment stuck in "Failed" provisioning state
Summary Our Azure Container Apps Managed Environment is stuck in provisioningState: "Failed", blocking all new deployments (container image updates) to every Container App running in it. The application itself continues serving traffic normally…
Azure Container Apps
Azure Container Apps
An Azure service that provides a general-purpose, serverless container platform.
991 questions
asked
2026-08-16T14:28:00.2733333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(214.4, 83%, 30%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EIP%3C/text%3E%3C/svg%3E)
Iryna Pytlovana
0
Reputation points
commented
2026-09-11T08:10:08.6+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(38.4, 53%, 13%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ERV%3C/text%3E%3C/svg%3E)
Rajesh Venkatraman
0
Reputation points
1 answer
How can we fix AD CS database fragmentation ?
I’ve run into a situation where our issuing CA is taking nearly 30 seconds to issue each certificate, which is slowing down operations significantly. I discovered that the underlying Jet database indexes have become fragmented, causing performance…
Windows for business | Windows 365 Enterprise
1,372 questions
asked
2026-09-11T07:32:27.7066667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(249.60000000000002, 75%, 34%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ESH%3C/text%3E%3C/svg%3E)
Syafiq Hamid
40
Reputation points
answered
2026-09-11T08:06:27.4333333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(153.6, 9%, 24%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EHL%3C/text%3E%3C/svg%3E)
Hoang Le
4,665
Reputation points
Independent Advisor