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Hotmail account blocked from sending (550 5.7.520 AS(4810)) and support replies bounce

My Hotmail account, [PII removed]@hotmail.ca, is blocked from sending email. Every message I send, to every recipient I've tried, bounces with: 550 5.7.520 Message blocked because it contains content identified as spam. AS(4810) It started on October 10,…

Outlook | Web | Outlook.com | Account management, security, and privacy
asked 2026-10-10T21:59:55.9333333+00:00
Jeremy Willuhn 0 Reputation points
commented 2026-10-15T04:07:23.35+00:00
Jeremy Willuhn 0 Reputation points
1 answer

Team Premium Webinar - Hide attendee names won't save

I have a Teams Premium license and I want to use the hide attendee names. I have created a webinar into the future, added a presenter and activated the 'hide attendee names'. However whenever I try to save changes, I receive the following error…

Microsoft Teams | Microsoft Teams for business | Meetings and calls | Schedule meetings
asked 2026-10-11T07:41:23.83+00:00
Migraine Foundation webinars 0 Reputation points
commented 2026-10-15T04:07:23.3333333+00:00
Brad Cohoe 0 Reputation points
2 answers

Lexmark printer printing only one page

My school printer printing only one page and it really slow

Windows for home | Other | Devices and drivers
asked 2026-10-13T18:35:39.1+00:00
Pema Wangdak 5 Reputation points
commented 2026-10-15T04:07:14.2166667+00:00
Emma1-N 13,700 Reputation points Microsoft External Staff Moderator
2 answers

Pin Numbers

Does Microsoft security use require pin numbers in addition to user names and passwords? If yes, how does a user maintain a current PIN?

Windows for home | Windows 10 | Security and privacy
asked 2026-10-13T18:47:38.0333333+00:00
Bob Hardy 0 Reputation points
commented 2026-10-15T04:06:53.38+00:00
Emma1-N 13,700 Reputation points Microsoft External Staff Moderator
1 answer

Page de test

Mon imprimante Canon Pixma TR4720 n'Imprime pas la page test. Qoi faire

Windows for home | Other | Devices and drivers
asked 2026-10-13T20:40:38.42+00:00
Marie-Monique Vaval 0 Reputation points
commented 2026-10-15T04:06:27.0766667+00:00
Emma1-N 13,700 Reputation points Microsoft External Staff Moderator
1 answer

Supported API-set version resolution verification for synch-l1-2-0 on Windows 26300.9711 x64-

Hello Microsoft Windows API Team, We are assessing native dependencies for a proposed Windows packaged desktop application using Microsoft.VCLibs.140.00.UWPDesktop version 14.0.33321.0 (x64). We need technical clarification about two unresolved static…

Windows development | Windows API - Win32
asked 2026-10-14T18:19:07.5433333+00:00
Prosanta Roy 0 Reputation points
edited an answer 2026-10-15T04:05:49.7266667+00:00
Zack Nguyen (WICLOUD CORPORATION) 245 Reputation points Microsoft External Staff Moderator
1 answer

How can I delete non-working work account from Teams

I have Teams for Windows and Teams for Mac. Both of them show my old work account which is not working. I cannot delete it. Please help

Microsoft Teams | Microsoft Teams for business | Sign up and Sign in | Sign in
asked 2025-09-22T16:43:41.05+00:00
Alex Trubnikov 0 Reputation points
commented 2026-10-15T04:03:46.5733333+00:00
Henry V 0 Reputation points
2 answers

Artifact Signing organization verification blocked by AU10TIX Verified ID failure

I am completing organization identity validation for Azure Artifact Signing in South Korea. After completing the ID document and facial capture steps, AU10TIX displays: “Sorry, you do not meet requirements to create a Verified ID at this time.” Azure…

Artifact Signing
Artifact Signing

A fully managed end-to-end service for digitally signing code, documents, and applications. (formerly Trusted Signing)

1,451 questions
asked 2026-10-15T03:46:38.2766667+00:00
승혁 백 0 Reputation points
answered 2026-10-15T04:03:43.3733333+00:00
승혁 백 0 Reputation points
1 answer

need a pin to log in cant reset

using your hello log in you keep asking for a pin i dont have one and i cant set one

Windows for home | Windows 10 | Windows Hello, lock screen and sign-in
asked 2026-10-10T00:26:46.1833333+00:00
Cindy Shay 0 Reputation points
commented 2026-10-15T04:02:42.1266667+00:00
Hendrix-V 20,300 Reputation points Microsoft External Staff Moderator
1 answer

installing activated office 2013 on new laptop

Hello, I have activated Office Standard 2013 MAK licence on my old outdated computer and would like to install this on my new laptop. Please provide step by step guidance

Microsoft 365 and Office | Install, redeem, activate | Other | Windows
asked 2026-10-14T15:08:02.6766667+00:00
Andriy Poremskyy 0 Reputation points
answered 2026-10-15T04:00:23.6966667+00:00
san nusi 0 Reputation points
2 answers

Folders can't be opened from other programs

When I try to open up a folder form another program (such as "Browse Local Files" on Steam), nothing happens. No errors, no nothing. I can use explorer normally otherwise. I have tried other explorer alternatives, but they do not work either. I…

Windows for home | Windows 10 | Files, folders, and storage
asked 2026-10-10T16:55:46.4866667+00:00
Eric 0 Reputation points
commented 2026-10-15T04:00:00.8033333+00:00
Hendrix-V 20,300 Reputation points Microsoft External Staff Moderator
2 answers

why am I not receiving emails that are sent to my email address?

I am not receiving emails that are sent directly to me thru my email. It seems another individual is using my email address as I received an email addressed to that individual from another source. I am expecting replies to a family reunion and I won't…

Outlook | Web | Outlook.com | Email
asked 2026-10-14T19:55:57.2433333+00:00
helen carden 0 Reputation points
answered 2026-10-15T03:56:32.38+00:00
Chloe-V 14,125 Reputation points Microsoft External Staff Moderator
2 answers

How to ensure an Excel spreadsheet edited on my PC Desktop version is correctly syncing with the "master" spreadsheet maintained by MS 365 (Business) using SharePoint

I use MS365 (Business)/SharePoint facility via my personal PC at home. Under no circumstances do I want this (Business) facility controlling or attempting to control anything on my personal PC. However: When I access an Excel spreadsheet resident with…

Microsoft 365 and Office | OneDrive | For business | Windows
asked 2026-10-15T01:23:18.18+00:00
David 0 Reputation points
edited an answer 2026-10-15T03:55:45.62+00:00
Jade Ng 16,030 Reputation points Microsoft External Staff Moderator
4 answers

Laptop screen saver time

How to extend my screen saver time? My laptop screen goes off every few minutes even though it is currently set to 30 minutes.

Windows for home | Windows 10 | Sleep and Power on, off
asked 2026-10-08T01:39:17.48+00:00
Chang Hong 0 Reputation points
commented 2026-10-15T03:55:33.5066667+00:00
Hendrix-V 20,300 Reputation points Microsoft External Staff Moderator
2 answers

MSN account cannot send any emails, error 550 5.7.520 AS(4810)

I have used my @msn.com email account for years, but starting October 12, 2026, all outgoing emails are being rejected with this error: 550 5.7.520 Message blocked because it contains content identified as spam. AS(4810) My last successful outgoing…

Outlook | Web | Outlook.com | Email
asked 2026-10-12T14:18:31.2033333+00:00
HNP 0 Reputation points
edited a comment 2026-10-15T03:54:06.5833333+00:00
Hornblower409 16,820 Reputation points
2 answers

Unable to format/wipe SSD

I can't able to delete/format/wipe my SSD Drives using command prompt or any other softwares which allows doing this SSD(1-TB) which is unformattable. An old Windows 11 OS is installed in it. Is that a Problem for formatting the SSD? . Anyway Please…

Windows for home | Windows 11 | Files, folders, and storage
asked 2026-10-11T03:23:52.1566667+00:00
Satheesh Rajamanickam 0 Reputation points
edited a comment 2026-10-15T03:52:41.1566667+00:00
Satheesh Rajamanickam 0 Reputation points
1 answer

Sole Global Admin locked out of Microsoft 365 after phone change (MFA)

Hello, I use Microsoft 365 for business with a company account. After changing my mobile phone, I can no longer complete MFA (Microsoft Authenticator), so I cannot sign in. I still know my password, but no alternative authentication method is…

Microsoft 365 and Office | Subscription, account, billing | For business | Other
asked 2026-10-15T03:18:07.05+00:00
호준 윤 0 Reputation points
answered 2026-10-15T03:50:06.7166667+00:00
JeseminQH 925 Reputation points Independent Advisor
1 answer

How can I start my laptop withouth a recovery key?

My bitlocker activated after I update my laptop, it did restart and then this screen appears

Windows for home | Windows 11 | Windows update
asked 2026-10-15T03:25:56.0133333+00:00
answered 2026-10-15T03:49:56.3966667+00:00
Pauli O 16,470 Reputation points Volunteer Moderator
2 answers

How to fix surface when it says: your device ran into a problem and couldn’t be repaired

Tried to use recovery options, but says: your device ran into a problem and couldn’t be repaired

Windows for home | Windows 11 | Performance and system failures
asked 2026-10-14T18:25:31.3433333+00:00
Debby Gallo 0 Reputation points
answered 2026-10-15T03:49:53.5866667+00:00
Emma1-N 13,700 Reputation points Microsoft External Staff Moderator
2 answers

Outlook very very slow to sync on PC although very quick on my phone.

Previous questions (by others) asking basically the same thing have suggested adjustment that don't appear when following the instructions given.

Outlook | Windows | Classic Outlook for Windows | For home
asked 2026-10-10T01:26:38.23+00:00
PJSmcfeet-3646 0 Reputation points
commented 2026-10-15T03:49:32.6533333+00:00
Hendrix-V 20,300 Reputation points Microsoft External Staff Moderator