On 8, Microsoft rolled out KB5002914 for Excel, but it apparently has a bug that makes it impossible to copy and paste.
Microsoft confirmed an issue in the latest Windows 11 update that breaks copy and paste in Excel.
Windows Report on MSN
Microsoft Excel copy and paste isn’t working after KB5002914 update, the company confirms
Microsoft has confirmed a copy-and-paste issue affecting Excel 2024, 2021, 2019, and 2016 after the KB5002914 security update ...
Microsoft has confirmed that copy and paste may silently fail for some Excel users after installing the 2026 KB5002914 ...
Microsoft's latest security updates have caused issues with Remote Desktop Services, USB audio devices, and Excel's paste functionality, highlighting ongoing quality concerns.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results