Any fix released by Microsoft to fix copy past issue with this KB5002934 ?

Microsoft has not documented a separate fix for a copy/paste regression specifically introduced by KB5002934; the published Excel 2016 fix is the latest revision of KB5002665 for the silent-paste issue originally associated with KB5002914.

Apply the supported fix first

KB5002934 supersedes KB5002914, but its article lists security corrections rather than a copy/paste correction.^1^ Microsoft documents the copy/paste issue under KB5002914 and identifies KB5002665 as its fix.^2^

For MSI-based Excel 2016:

1. Leave KB5002934 installed.
2. Check Control Panel → Programs → Programs and Features → View installed updates for KB5002665.
3. If KB5002665 is absent—or an earlier package was deployed—download and install the current KB5002665 package matching Office architecture, x86 or x64.
4. Restart Windows and test ordinary Ctrl+C/Ctrl+V in:
   • A new blank workbook.
   • An affected existing workbook, particularly one containing conditional formatting.

Use the latest KB5002665 revision: Microsoft states that an earlier revision could still fail in workbooks containing conditional formatting, while the latest revision provides the complete fix.^3^

These packages apply to Windows Installer (MSI)-based Excel 2016, not Office 2016 Click-to-Run. Your use of Oarpmany.exe indicates an MSI servicing workflow, but verify the affected deployment type before distributing the update.^3^

If KB5002934 alone reproduces the failure

If the latest KB5002665 is installed and paste:

• fails while KB5002934 is installed,
• works after KB5002934 is removed, and
• fails again after KB5002934 is reinstalled,

that is evidence of a KB5002934-specific regression not covered by the currently documented fix.

Since your uninstall commands already execute successfully, do not repeat removal as the permanent remedy. KB5002934 addresses Excel security vulnerabilities, so leaving it uninstalled leaves those protections absent.^1^ Reinstall it after the diagnostic test and report the reproducible result through:

• Excel → File → Feedback → Report a Problem, or
• Microsoft Support through the public Contact Support workflow.

Include:

• Excel version/build from File → Account → About Excel.
• MSI edition and x86/x64 architecture.
• Installed KB5002665 and KB5002934 details.
• Whether new and existing workbooks are affected.
• Whether conditional formatting is involved.
• Results before removal, after removal, and after reinstalling KB5002934.

Temporary workaround

Until Microsoft publishes a KB5002934-specific correction, use Home → Paste ▼ → Paste Special, then select Formulas, Formulas and Number Formats, Values, Values and Number Formats, or Paste Link. Microsoft lists these as workarounds for silent paste failures.^4^

References

1. Description of the security update for Excel 2016: October 13, 2026 ...
2. Description of the security update for Excel 2016: September 08, 2026 ...
3. September 16, 2026, update for Excel 2016 (KB5002665)
4. The paste operation might fail with no notifications in Excel ...