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Microsoft confirms October Windows 10/11 updates cause database connection issues, some servers may slow down over time

Source: IT之家 Published: Developers 中文 数据库Win10Win11
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Microsoft has acknowledged that some Windows 11 and Windows 10 systems that installed the cumulative update released on October 13 may experience database connections that fail to close properly in environments using SQL Server, and the November update has not fixed the issue. The problem affects the SQL Server "linked server" feature, where OLE DB components are used to connect to external databases, including Oracle and PostgreSQL; some connections remain open after queries finish and accumulate, degrading server performance. Administrators can temporarily mitigate the issue by manually closing confirmed inactive connections or restarting the SQL service, but these actions may interrupt running queries or transactions, and the anomaly may recur after the system runs for a while.

Translation(model translation, not the source's own text)

Microsoft Acknowledges October Windows 10/Windows 11 Update Causes Database Connection Issues, Some Servers May Slow Down Over Time

IT Home, November 14 — Tech media outlet BornCity published a blog post today (November 14) reporting that Microsoft has acknowledged that after some Windows 11 and Windows 10 systems install the cumulative update released on October 13, some environments using SQL Server may experience database connections that fail to close properly, and the November update has not yet fixed the issue.

Regarding the scope of impact, IT Home cites the blog post in reporting that Microsoft acknowledges the issue affects the following versions:

  • Windows 11, version 26H1
  • Windows 11, version 25H2
  • Windows 11, version 24H2
  • Windows 11, version 23H2
  • Windows 10 Enterprise LTSC 2019
  • Windows Server 2025
  • Windows Server 2022
  • Windows Server, version 1809
  • Windows Server 2016
  • Windows Server 2012 R2
  • Windows Server 2012

Regarding how the issue manifests, it involves the SQL Server "linked server" feature, i.e., querying other databases through SQL Server. Affected environments use OLE DB components to connect to external databases, with Oracle and PostgreSQL known to be involved.

Normally, after a query ends, the corresponding connection should close as expected; but affected by this issue, some connections remain open, and as subsequent queries continue to accumulate, server performance is affected.

Administrators can temporarily mitigate the issue by manually closing confirmed inactive connections or restarting the SQL service. However, these operations may interrupt queries or transactions in progress, and after running for a period of time, the anomaly may reappear.

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The translation is machine-generated and individual terms may be off. Nothing is rewritten or cut; the original is authoritative.

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