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Microsoft fixes broken Excel copy and paste for all Office users

September 21, 2026 · BleepingComputer · Severity: MEDIUM

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

Key Takeaways

  • Microsoft has fixed a broken Excel copy and paste issue for all Office users, resolving a bug that prevented proper clipboard functionality in the spreadsheet application.
  • The Excel copy-paste fix restores productivity for affected users who experienced disrupted workflows due to the clipboard functionality failure in Microsoft Office applications.
  • Users experiencing Excel clipboard issues should install the latest Office update to receive this fix and restore full copy-paste functionality in their spreadsheets.
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