醫療 IT 維運週報|2026-10-01

近 7 天維運重點與風險追蹤

2026-09-24 ~ 2026-10-01|查核時間 09:11(台北時間)

醫療 IT 維運週報 2026-10-01

本期需立即注意的重點

  1. Exchange Online EWS 分階段停用已自 10/1 啟動;9/30 新增混合式例外指引。 若有 Exchange Online 封存信箱或跨組織郵件協作,先盤點租戶設定、Hybrid AppID 與實際工作流程,不要只依「改用 Graph」的通則移除 EWS。[1][2]
  2. Entra Connect 最低版本期限已於 9/30 屆滿。 立即確認正式及 Staging 主機版本和同步健康度;低於 2.5.79.0 者須升級至 2.6.92.0 或更新受支援版本。[4]
  3. Windows 11 24H2 網域信任問題於 9/29 標示 Mitigated,但不是完全修復。 使用 Machine Identity Isolation 的非 Windows Server 2025 DFL 環境仍需處置;USB Audio Class 1.0 問題也只有部分症狀已解決。[5]
  4. Windows Server 2019 DC 更新後無法開機的 Reddit 貼文未證實。 有單一管理者回報,也有留言表示相同版本沒有問題;沒有 Microsoft 官方交叉證據,不視為已確認故障。[7]

依產品分類

1. Exchange Online/郵件流與混合式架構

1-1. [已生效] EWS 租戶分階段停用開始;混合式封存與跨組織分享需保留特定 EWS 路徑

2. Microsoft Entra/同步

2-1. [已生效] Entra Connect Sync 最低版本期限已過

3. Windows 11/Windows Server/Active Directory

3-1. [已生效] Windows 11 24H2 網域信任問題標示緩解;Machine Identity Isolation 條件仍需確認

3-2. [已生效/部分緩解] USB Audio Class 1.0 問題標示 Mitigated,但涵蓋範圍有限

4. 社群訊號/未證實

4-1. [僅供參考/未證實] Reddit 個別回報 Windows Server 2019 DC 安裝累積更新後無法開機

本期未重列的追蹤範圍

Sources

[1] https://techcommunity.microsoft.com/blog/exchange/impact-of-exchange-online-ews-deprecation-on-hybrid-rich-coexistence-and-cross-o/4561161 > "The scenario where on-premises mailboxes have archive mailboxes in Exchange Online is not fully supported yet." > "For now, continue using EWS functionality with your Exchange Online tenant if you have on-premises mailboxes with online archives." [2] https://techcommunity.microsoft.com/blog/exchange/exchange-online-ews-your-time-is-almost-up/4492361 > "Any tenant with EWSEnabled still set to Null on October 1, 2026, will see the value changed to False as the deployment rolls out." [3] https://learn.microsoft.com/en-us/exchange/clients-and-mobile-in-exchange-online/deprecation-of-ews-exchange-online > "April 2027: EWS is fully disabled." [4] https://learn.microsoft.com/en-us/entra/identity/hybrid/connect/reference-connect-version-history > "All synchronization services in Microsoft Entra Connect Sync will stop working on September 30, 2026 if you're not on at least version 2.5.79.0." > "This release includes security fixes. We recommend upgrading to this version as soon as possible." > "09/23/2026: Released for download via the Microsoft Entra admin center. This is a hotfix release." [5] https://learn.microsoft.com/en-us/windows/release-health/status-windows-11-24h2 > "Last updated: 2026-09-29, 10:12 PT" > "After installing the September 8, 2026, Windows security update (KB5124008), or later updates, some Credential Guard protected machine accounts might lose their secure channel with an on-premises Active Directory (AD) domain." > "Any devices previously configured to use Machine Identity Isolation that are not connected to Windows Server 2025 domain controllers will experience this issue and will need to disable the feature." > "This issue is limited to USB Audio Class 1.0 devices." > "This issue is partially resolved in the out-of-band (OOB) update released on September 14, 2026, (KB5129195), and updates released after this date." [6] https://learn.microsoft.com/en-us/defender-endpoint/microsoft-defender-endpoint-releases > "| Linux | 101.26081.0010 | September 2026 | - Release version: 30.126081.0010.0 - Engine version: 1.1.26090.3000 - Signature version: 1.459.287.0 |" [7] https://www.reddit.com/r/sysadmin/comments/1whxima/windows_server_2019_domain_controllers_bsod_after > "We've encountered a consistent issue across our environment where all Windows Server 2019 Domain Controllers fail to boot after installing the August and September 2026 cumulative updates." > "None of our server 2019 domain controllers are having any issues."