On 8, Microsoft rolled out KB5002914 for Excel, but it apparently has a bug that makes it impossible to copy and paste.

Microsoft has fixed Excel copy-and-paste failures caused by September 2026 updates across Office 2016, 2019, 2021, and 2024.

Microsoft has fixed a known issue that causes copy-and-paste failures for Excel users after installing the September 2026 security updates.

A September security update silently killed copy and paste, autofill and formula dragging in Excel.

Microsoft's September security update stops Excel from pasting. The command fails without a beep and without an error message ...

While Windows users are disappointingly familiar with updates causing problems, the same cannot be said of people using ...

German]The Microsoft security updates released for Office applications on September 8, 2026, are causing serious collateral damage. In Excel, it is no longer possible to select and copy anything.

The wait begins.

Microsoft has confirmed a copy-and-paste issue affecting Excel 2024, 2021, 2019, and 2016 after the KB5002914 security update ...

Copying material from the internet into your Excel spreadsheet can be easy. Or pretty difficult. It all depends on what exactly you're trying to copy and how you would like it to appear in your ...

Microsoft Excel 2019 is a powerful management tool for many business owners. It combines the simplicity of a cell-based information system with formatting features that both highlight important data ...

Microsoft has fixed a known issue that causes copy-and-paste failures for some Excel users after installing the 2026 ...