Microsoft Excel KB5002914 update breaks copy and paste for some users
Microsoft's September Patch Tuesday update KB5002914 breaks copy-and-paste and formula dragging in Excel 2016 through 2024; uninstalling the update restores functionality.
Users on Reddit and Microsoft Q&A report that the KB5002914 security update shipped in the September 2026 Patch Tuesday breaks copy-and-paste, autofill, and formula dragging in Excel. The problem spans Office 2016 through 2024 across MSI and Click-to-Run installations, including Office LTSC Standard 2021, with some teams blocked after widespread patching. Uninstalling KB5002914 or downgrading the Office build restores functionality, though replacing the excel.exe binary is not recommended. BleepingComputer could not reproduce the issue on Excel 2019 Version 2508 Build 19127.20302 and contacted Microsoft for comment.
- Users report copy-and-paste and formula dragging broke after KB5002914
- Affects Office 2016 through 2024, including MSI and Click-to-Run installs
- Uninstalling the update or downgrading Office builds restores functionality
- BleepingComputer could not reproduce the issue on Excel 2019 Build 19127.20302
- Vendors
- Microsoft
- Products
- Microsoft ExcelOffice
- Organizations
- BleepingComputer
From the original article
2 min read at bleepingcomputer.com
Microsoft Excel users report that this week's KB5002914 Office security update is breaking copy-and-paste operations and formula dragging, with affected users saying that removing or rolling back the update restores normal functionality. [...]
By Lawrence Abrams · bleepingcomputer.com
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