Hello Team, We have identified an issue in Microsoft Excel after upgrading Microsoft Office 2021 to Version 2108 (Build 14334.20906) , released on September 8, 2026 . Issue Details Ctrl + C / Ctrl + V (Copy-Paste) is not working properly in Excel. Copy-Paste between Excel cells/workbooks is affected. Formula dragging using the Fill Handle is not working as expected. AutoFill functionality is impacted. In some cases, users are also unable to cancel the copied-cell selection using the Esc key. The issue has been reported across multiple systems, indicating that it may be related to the recent Microsoft update rather than an individual system issue. Troubleshooting Performed Restarted Excel and the affected systems. Performed Office Repair. Disabled Excel add-ins. Tested with different keyboards. Important Observation When we roll back to Version 2108 (Build 14334.20848) , the issue is resolved and Ctrl+C / Ctrl+V work normally again . This suggests that the problem may be related to changes introduced in Build 14334.20906 . Workaround For anyone who wants to roll back to Version 2108 (Build 14334.20848) , open Command Prompt as Administrator and run the following command: "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeC2RClient.exe" /update user updatetoversion=16.0.14334.20848 Show more lines Has anyone else experienced this issue after updating to Build 14334.20906 ? Is there any known workaround, fix, or acknowledgment from Microsoft regarding this behavior? Thank you.

I also have CTRL D and CTRL R not working. CTRL C puts the data in the clipboard but CTRL V will not paste it. Windows V shows the data but it will not paste back into Excel. From Windows V I can paste to other apps but not with CTRL V. CTRL X will cut the data and then CTRL V will paste.

Ctrl+C and Ctrl+V Not Working in Excel After Updating to Office 2021 Version 2108 (Build 14334.20906)

Vijay Kumar4 35

Hello Team,

We have identified an issue in Microsoft Excel after upgrading Microsoft Office 2021 to Version 2108 (Build 14334.20906), released on September 8, 2026.

Issue Details

Ctrl + C / Ctrl + V (Copy-Paste) is not working properly in Excel.
Copy-Paste between Excel cells/workbooks is affected.
Formula dragging using the Fill Handle is not working as expected.
AutoFill functionality is impacted.
In some cases, users are also unable to cancel the copied-cell selection using the Esc key.
The issue has been reported across multiple systems, indicating that it may be related to the recent Microsoft update rather than an individual system issue.

Troubleshooting Performed

Restarted Excel and the affected systems.
Performed Office Repair.
Disabled Excel add-ins.
Tested with different keyboards.

Important Observation

When we roll back to Version 2108 (Build 14334.20848), the issue is resolved and Ctrl+C / Ctrl+V work normally again. This suggests that the problem may be related to changes introduced in Build 14334.20906.

Workaround

For anyone who wants to roll back to Version 2108 (Build 14334.20848), open Command Prompt as Administrator and run the following command:

"C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeC2RClient.exe" /update user updatetoversion=16.0.14334.20848

Show more lines

Has anyone else experienced this issue after updating to Build 14334.20906? Is there any known workaround, fix, or acknowledgment from Microsoft regarding this behavior?

Thank you.

Natalie Mansur 0 Reputation points

2026-09-10T03:16:06.6166667+00:00

Thank you! Was going nuts trying to solve this
ZORA Ruben 0 Reputation points

2026-09-10T06:30:29.0566667+00:00

Thanks for this post. We’re having the same issue here. I hope a fix will be released soon.
Jérémy Chantrel 0 Reputation points

2026-09-10T19:18:42.0733333+00:00

Running your command solved the problem by downloading and installing the correct version. Thank you very much!
Friedrich WILHELM 0 Reputation points

2026-09-11T06:31:27.6333333+00:00

the command doesn't work:
FBACHPG98-6666 5 Reputation points

2026-09-11T06:47:06.1666667+00:00

@Friedrich WILHELM : try running the command through CMD instead of PowerShell
blackpearl 0 Reputation points

2026-09-11T08:35:17.81+00:00

awsome, it's work... thanks a lot
Simpson, Craig 0 Reputation points

2026-09-11T09:25:21.43+00:00

Paste as formula seems like a solid workaround for now, not ideal but works.
Friedrich WILHELM 0 Reputation points

2026-09-11T09:34:44.64+00:00

a college told me to insert this sign before the command: &

now it worked and I can use Excel like before.
Ahmed Masry 0 Reputation points

2026-09-11T12:29:01.0333333+00:00

Dears,

please can anyone told me the right command for try
Minahaj Mansuri 0 Reputation points

2026-09-12T23:03:53.7333333+00:00

As of now you can use below mentioned Command for rollback command

reg add "HKLM\SOFTWARE\Microsoft\Office\16.0\Common\OfficeUpdate" /v "EnableAutomaticUpdates" /t REG_DWORD /d 0 /f

"C:\Program Files\Common Files\microsoft shared\ClickToRun\officec2rclient.exe" /update user updatetoversion=**16.0.17932.20910

Version you have to check as per Your installed EXCEL**

7 answers

Wayne Burrows 0 Reputation points

2026-09-13T05:07:29.13+00:00

I also have CTRL D and CTRL R not working.

CTRL C puts the data in the clipboard but CTRL V will not paste it. Windows V shows the data but it will not paste back into Excel. From Windows V I can paste to other apps but not with CTRL V.

CTRL X will cut the data and then CTRL V will paste.
Was this answer helpful?
Wayne Burrows 0 Reputation points

2026-09-13T05:13:55.98+00:00

Also I had Office 2021. It now shows as Office 2024 and unregistered.
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