219 questions with Windows for business | Windows Server | Directory services | Certificates and public key infrastructure (PKI) tags

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2 answers

how do i get a new secure boot certificate

Hello I need a new secure boot certificate for Windows 10

Windows for business | Windows Server | Directory services | Certificates and public key infrastructure (PKI)
asked 2026-06-12T17:26:20.3466667+00:00
Dennis Wilkinson 0 Reputation points
answered 2026-06-12T19:42:14.4033333+00:00
Scott Nguyen 1,470 Reputation points Independent Advisor
2 answers One of the answers was accepted by the question author.

Windows server 2016 RDP TLS /SSL certificate

I am reviewing the TLS/SSL certificate configuration used for remote desktop services on windows server 2016 VM and would like some help During the review of the remote desktop certificate . i observed a message "The root CA certificate is not…

Windows for business | Windows Server | Directory services | Certificates and public key infrastructure (PKI)
asked 2026-06-10T14:47:44.7633333+00:00
sara rashid 20 Reputation points
commented 2026-06-11T12:52:27.8566667+00:00
sara rashid 20 Reputation points
2 answers

Windows NPS with CA 802.1x wired

I am experiencing an issue with 802.1X authentication. This is the first user/computer attempting to authenticate in this setup. The environment consists of Windows 11 clients and Windows Server 2025. On the server side, NPS is configured with network…

Windows for business | Windows Server | Directory services | Certificates and public key infrastructure (PKI)
asked 2026-06-03T13:25:00.5166667+00:00
Paweł Wójcik 0 Reputation points
commented 2026-06-08T08:04:37.1433333+00:00
Paweł Wójcik 0 Reputation points
3 answers

upgrade enterprise CA server from 2016 OS to 2025 OS

Will there be any change in user certificate being used for Citrix FAS solution if we upgrade enterprise CA server from 2016 OS to 2025 OS, as I read somewhere that user certificate subject DN was missing from 2025

Windows for business | Windows Server | Directory services | Certificates and public key infrastructure (PKI)
asked 2026-05-26T09:57:19.26+00:00
Kumar Anup 0 Reputation points
answered 2026-05-29T04:32:30.29+00:00
Jason Nguyen Tran 19,865 Reputation points Independent Advisor
2 answers

Certificate expiration

I have User Certificate Template and the validity period set to 5 years but why the actual certificate is only valid for 2 years?

Windows for business | Windows Server | Directory services | Certificates and public key infrastructure (PKI)
asked 2026-05-26T00:36:36.68+00:00
Handian Sudianto 7,241 Reputation points
commented 2026-05-26T01:49:35.2+00:00
Handian Sudianto 7,241 Reputation points
1 answer

Replacing PKI Enterprise CA (Root and Issuing CA on single server) with 2 Tier PKI Root CA and separate CA issuing server

We are looking to change our PKI implementation from a single server in the domain running the Root and Issuing CA server with a lot of defaults, to a best practices Infrastructure with a two tier PKI Root CA (non-domain) and Issuing CA (domain joined)…

Windows for business | Windows Server | Directory services | Certificates and public key infrastructure (PKI)
asked 2026-05-13T16:27:54.16+00:00
Tim Gross 106 Reputation points
answered 2026-05-13T17:11:50.0466667+00:00
HLBui 6,675 Reputation points Independent Advisor
2 answers One of the answers was accepted by the question author.

CA Server without AD

If we want to implement 8021.x with certificate based authentication then we need CA server and the certificate will be pushed from intune. Can we build the CA server in standalone/workgroup becuse I dont have onpremises Active Directory?

Windows for business | Windows Server | Directory services | Certificates and public key infrastructure (PKI)
asked 2026-04-30T02:31:30.68+00:00
Handian Sudianto 7,241 Reputation points
accepted 2026-05-04T14:53:59.2266667+00:00
Handian Sudianto 7,241 Reputation points
2 answers

What is best approach for ADCS Enterprise Subordinate Certificate Renewal

1. SubCA Renewal – Distribute First Then Activate --> Is this a recommended approach for Enterprise certificate authority cert renewal or not? We are planning to renew Enterprise Subordinate CA Certificate using same private key. Looking for best…

Windows for business | Windows Server | Directory services | Certificates and public key infrastructure (PKI)
asked 2026-05-04T12:15:06.1+00:00
Arti Kumari 0 Reputation points
edited the question 2026-05-04T13:33:49.2+00:00
Arti Kumari 0 Reputation points
2 answers

Best Practices for Active Directory Rebuild and OU Design

Hi Microsoft Team, I’m currently working on Active Directory redesign and reconstruction effort and would appreciate guidance on Microsoft’s recommended best practices. Specifically, I am looking for clarification on the following areas: What are…

Windows for business | Windows Server | Directory services | Certificates and public key infrastructure (PKI)
asked 2026-04-25T15:42:16.64+00:00
emir goenaga 0 Reputation points
answered 2026-04-25T16:50:28.7133333+00:00
HLBui 6,675 Reputation points Independent Advisor
2 answers One of the answers was accepted by the question author.

Cert private key permission changes

Hello, We're implementing a new Windows Event Collector using HTTPS. I have followed various online guides from Microsoft and others and I have a working environment. The only issue I ran in to was having to assign the NETWORK SERVICE account read only…

Windows for business | Windows Server | Directory services | Certificates and public key infrastructure (PKI)
asked 2026-04-13T19:13:26.4+00:00
Hardwick, Lewis 20 Reputation points
accepted 2026-04-14T15:26:11.28+00:00
Hardwick, Lewis 20 Reputation points
2 answers

Can NPS authenticate non-Domain computers via EAP-TLS?

Hi Everyone! I tried to implement NPS to authenticate non-Domain joined computers by using computer certificate to access Cisco Wi-Fi, but failed. My environment: Windows 2019 DC Windows 2019 CA + NPS Cisco WL3504 + AP1832I Windows 10 + Windows 11…

Windows for business | Windows Server | Directory services | Certificates and public key infrastructure (PKI)
asked 2025-03-31T10:11:48.86+00:00
Alex Wu 0 Reputation points
commented 2026-04-09T13:43:33.2133333+00:00
Brett 0 Reputation points
3 answers

NPS EAP-TLS machine authentication fails, but user certificate authentication works

Does anyone have any suggestions? Thank you! NPS deny reason code 16 using computer certificate(EAP-TLS) Windows 11 24H2 client Aruba AP/controller NPS on Windows Server PEAP works user cert works computer cert fails machine cert is in Local…

Windows for business | Windows Server | Directory services | Certificates and public key infrastructure (PKI)
asked 2026-04-03T22:28:01.99+00:00
mmuser-9331 0 Reputation points
answered 2026-04-07T08:19:41.0866667+00:00
HLBui 6,675 Reputation points Independent Advisor
2 answers

ADCS cluster in-place upgrade from 2012r2 --> 2016 --> 2019 - Issue with the secondary node

Hi, Ref: Windows Failover Cluster running ADCS role Please advise, if anyone had attempted ADCS failover cluster "in-place upgrade from 2012r2 --> 2016 --> 2019" and had seen issue with the secondary node showing offline after the upgrade…

Windows for business | Windows Server | Directory services | Certificates and public key infrastructure (PKI)
asked 2026-04-01T08:46:52.8+00:00
BK 0 Reputation points
answered 2026-04-01T09:18:47.76+00:00
Quinnie Quoc 11,400 Reputation points Independent Advisor
2 answers

DisableCapiOverrideForRSA registry removal impact on windows 2022

Patch send on Oct 2025- KB5066835, does it got executed on windows 2022. Also is the new patch for removing registry value DisableCapiOverrideForRSA which is due in april 2026, will it be applied to windows 2022?

Windows for business | Windows Server | Directory services | Certificates and public key infrastructure (PKI)
asked 2026-03-26T12:16:16.41+00:00
Mayuri Harkulkar Intertek 0 Reputation points
answered 2026-03-26T13:14:48.1233333+00:00
Tan Vu 2,735 Reputation points Independent Advisor
2 answers

troubleshooting a Windows code-signing issue involving a Sectigo code-signing certificate and a YubiKey

We are troubleshooting a Windows code-signing issue involving a Sectigo code-signing certificate and a YubiKey. Historically, our team’s workflow involved exporting a .pfx from Windows Certificate Manager and importing it into the YubiKey, but that is no…

Windows for business | Windows Server | Directory services | Certificates and public key infrastructure (PKI)
asked 2026-03-24T20:11:52.4+00:00
CJM20 0 Reputation points
commented 2026-03-25T18:59:38.91+00:00
CJM20 0 Reputation points
2 answers

[ARTICLE] Check secureboot CA 2023 certificates are installed on Windows 11

Open powershell application, type following commads one by one ([System.Text.Encoding]::ASCII.GetString((Get-SecureBootUEFI kek).bytes) -match ‘Microsoft Corporation KEK 2K CA 2023’) ([System.Text.Encoding]::ASCII.GetString((Get-SecureBootUEFI db).bytes)…

Windows for business | Windows Server | Directory services | Certificates and public key infrastructure (PKI)
asked 2026-03-11T16:43:41.01+00:00
VARADHARAJAN K 9,691 Reputation points Volunteer Moderator
edited the question 2026-03-25T03:14:03.8633333+00:00
Ivy Bui (WICLOUD CORPORATION) 505 Reputation points Microsoft External Staff Moderator
2 answers

ADCS Autoenrollment Not Renewing SAN Web Server Certificate

Creating a thread and asking for help cause I didn't find any information due to the specificity of this setup. Scenario Testing auto-renewal of a Web Server (for HTTPS scenarios) certificate with SANs in ADCS, using the AutoEnrollment…

Windows for business | Windows Server | Directory services | Certificates and public key infrastructure (PKI)
asked 2026-03-23T18:12:39.1466667+00:00
Lucas Campos 21 Reputation points
commented 2026-03-24T13:06:22.3066667+00:00
Lucas Campos 21 Reputation points
1 answer One of the answers was accepted by the question author.

is there a way to swap domains on a certificate?

I have two domains: plaidmug.com comarket.app Because of a change in the course of our business, we need to have the wildcard domain on comarket.app, not plaidmug.com. Is there a way to swap the domains without having to pay for new…

Windows for business | Windows Server | Directory services | Certificates and public key infrastructure (PKI)
asked 2026-03-22T12:32:08.21+00:00
Jeffrey McCandless 20 Reputation points
accepted 2026-03-23T13:16:51.1+00:00
Jeffrey McCandless 20 Reputation points
2 answers

Private key archival feature not working as expected

Hello, recently I have realized that my private keys are not archived at my issuing CA, even when the Recovery agent is configured, even that the clients are supposed to send the "blob" with the private key. But when i try to recover the…

Windows for business | Windows Server | Directory services | Certificates and public key infrastructure (PKI)
asked 2026-03-18T09:08:52.5833333+00:00
David Buřič 0 Reputation points
answered 2026-03-18T09:29:20.95+00:00
David Buřič 0 Reputation points
6 answers One of the answers was accepted by the question author.

Sign Code with a YubiHSM over the Network

I have a YubiHSM that is all set up an a different client. Firewall rules are all set. The YubiHSM ksp on my computer, a authorized code signing certificate from our SubCA (for testing purpose). The certificate is installed on my computer and i can…

Windows for business | Windows Server | Directory services | Certificates and public key infrastructure (PKI)
asked 2026-03-11T08:54:38.4433333+00:00
Jordan 20 Reputation points
commented 2026-03-16T10:38:58.5233333+00:00
Jordan 20 Reputation points