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

Question

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

Vijay Kumar4 60

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.

Locked Question. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

Mike Pisano 15 Reputation points

2026-09-09T18:43:20.0866667+00:00

You broke Office 2016 on all 500 of our desktops!!

You broke Cut and Paste 6 months ago, and now broke it again!

From Last Month's updates I have users with XLS Files that either Crash excel when double clicking or show "file is corrupted".

Rolling back to EXCEL.EXE 16.0.5561.1001 Fixes issue

and in Outlook 2016 we lost all pictures in Signatures when using Roaming profiles and redirected drives

Rolling MSO.DLL back to 16.0.5561.1000 Fixes issue
John G. Sullivan 0 Reputation points

2026-09-09T22:16:17.9933333+00:00

My PC updated this morning and now I have this exact problem.

If I paste using the paste box down arrow, the problem exists with the default (first) choice, but it seems to work if I take the second or third choices (formulas or formulas & numbers).

From your comment, it also appears they ship updates without testing them?

My question is - is there an update number I can remove to fix this?

I.e. how do I convert my current level of EXCEL.EXE 16.0.5569.1003 to an update number (there are dozens today) so I can remove it to get back to the prior level?

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.
FBACHPG98-6666 10 Reputation points

2026-09-10T09:02:17.9233333+00:00

Hello,

We also have the same problem with Excel on both Office LTSC 2019 and Office LTSC 2021, on 1500 computers.

Rollback is in progress through GPO, respectively to versions 16.0.10417.20197 and 16.0.14334.20806.

Hoping to receive a new version that fix this quite soon.
SelfMan 0 Reputation points

2026-09-10T12:57:23.28+00:00

The Office 2024 LTSC build 17932.20976 has the same clipboard issues.
I posted about it on reddit.
https://www.reddit.com/r/microsoftoffice/comments/1wce61r/
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!
José Alfonso Casarín Hernández 0 Reputation points

2026-09-10T19:24:00.75+00:00

What about Office 2016? same problem here
José Alfonso Casarín Hernández 0 Reputation points

2026-09-10T23:40:22.3733333+00:00

Running this in powershell as admin and closing all office apps first:

Start-Process msiexec.exe -ArgumentList '/package "{90160000-0011-0000-1000-0000000FF1CE}" /uninstall "{27882596-A8ED-4382-9C71-6CD2DD19F732}" /qn /norestart' -Verb RunAs
Friedrich WILHELM 0 Reputation points

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

the command doesn't work:
FBACHPG98-6666 10 Reputation points

2026-09-11T06:45:08.1366667+00:00

We also have the issue with Office 2016. But as we only have very few remaining in our environment, we did not look at a rollback solution.
In my opinion, to rollback, you need to uninstall the Excel update (KB5002914). If not enough, I would uninstall all Office updates published on Tuesday (KB5002898, KB4011160, KB5002913, KB5002915, KB5002916, KB5002917, KB5002918, KB5002904)
FBACHPG98-6666 10 Reputation points

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

@Friedrich WILHELM : try running the command through CMD instead of PowerShell
Pablo Rendón 10 Reputation points

2026-09-11T07:24:37.4533333+00:00

Anyone using Office 2024 LTSC needs to revert to an earlier version of Office.

Here is the command you must run in CMD with administrator privileges:

"C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeC2RClient.exe" /update user updatetoversion=16.0.17932.20910

This will resolve the copy paste issue. Remember to disable automatic updates afterwards.
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
John G. Sullivan 0 Reputation points

2026-09-12T19:59:51.6+00:00

Uninstall of the Excel update KB5002914 solved the problem for me on Office Excel 2016.

Thank you for narrowing it down.
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**
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.
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.
Matthias Abele 10 Reputation points

2026-09-13T16:35:46.47+00:00

I updated to the mentioned version and have the same Issue now. Hope there is a fix asap
Matthias Abele 10 Reputation points

2026-09-13T17:19:33.8866667+00:00

I just run another update. Build 14334.20914 fixes the issue.
윤 의진 15 Reputation points

2026-09-13T22:55:23.8166667+00:00

Hello. Has the issue of errors when opening older versions of Excel XLS files in MS Office 2016 been resolved as well??
윤 의진 15 Reputation points

2026-09-14T00:46:40.0966667+00:00

Hello. Has this been applied to MS 2016, 2019, and 2021 as well?
GAVIN 0 Reputation points

2026-09-14T02:46:32.8566667+00:00

September 12, 2026 – LTSC 2021 Version 2108 (Build 14334.20914)

September 12, 2026 – LTSC 2024 Version 2408 (Build 17932.20996)

Only partially fixed; copy-paste still does not work for many Excel files.
Daniel Brailovski 5 Reputation points

2026-09-14T09:34:01.8466667+00:00

Same with Office 2024 Version 2408 (Build 17932.20996)
Matthias Abele 10 Reputation points

2026-09-14T11:01:40.6466667+00:00

Applied to MO LTSC Professional Plus 2021
John G. Sullivan 0 Reputation points

2026-09-14T21:27:01.3566667+00:00

Uninstall of the Office / Excel update KB5002914 solved the problem for me on Office Excel 2016.
Sz Gr 5 Reputation points

2026-09-15T12:48:42.6+00:00

Excel 2021 Version 2108 Build 14334.20914 still contains a Copy/Paste regression.
In my opinoin it is related to Conditional Formatting.
In affected worksheets, standard Copy/Paste, Ctrl+D and Ctrl+R fail when at least one Conditional Formatting rule exists. Paste Special > Values, Formulas and Formulas & Number Formats continue to work. Removing all Conditional Formatting rules, saving the workbook and restarting Excel restores normal Copy/Paste. Build 14334.20848 did not exhibit the issue.
Krautscheid, Tobias 0 Reputation points

2026-09-15T13:11:23.2533333+00:00

Same in our environment.
Krautscheid, Tobias 0 Reputation points

2026-09-16T08:09:17.1366667+00:00

The problem is still existing like Sz Gr explained. Is there any progress at Microsoft to fix this issue?

Answer recommended by moderator

EmilyS_726 29,990 Volunteer Moderator

Microsoft has already rolled out fixes for this issue.

If you have 2016, KB5002665 can be installed to fix this issue, although conditional-formatting cases can still fail.

Office LTSC 2024: fixed in Build 17932.21000 (Update via Excel Files > Accounts > Update Options > Update now)

Office LTSC 2021: fixed in Build 14334.20918

Office LTSC 2019: mitigated in Build 10417.20208, but Microsoft says paste can still fail in workbooks containing conditional formatting.

0 comments

3 additional answers

Mike Pisano 15 Reputation points

2026-09-09T18:43:20.0866667+00:00

You broke Office 2016 on all 500 of our desktops!!

You broke Cut and Paste 6 months ago, and now broke it again!

From Last Month's updates I have users with XLS Files that either Crash excel when double clicking or show "file is corrupted".

Rolling back to EXCEL.EXE 16.0.5561.1001 Fixes issue

and in Outlook 2016 we lost all pictures in Signatures when using Roaming profiles and redirected drives

Rolling MSO.DLL back to 16.0.5561.1000 Fixes issue
John G. Sullivan 0 Reputation points

2026-09-09T22:16:17.9933333+00:00

My PC updated this morning and now I have this exact problem.

If I paste using the paste box down arrow, the problem exists with the default (first) choice, but it seems to work if I take the second or third choices (formulas or formulas & numbers).

From your comment, it also appears they ship updates without testing them?

My question is - is there an update number I can remove to fix this?

I.e. how do I convert my current level of EXCEL.EXE 16.0.5569.1003 to an update number (there are dozens today) so I can remove it to get back to the prior level?

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.
FBACHPG98-6666 10 Reputation points

2026-09-10T09:02:17.9233333+00:00

Hello,

We also have the same problem with Excel on both Office LTSC 2019 and Office LTSC 2021, on 1500 computers.

Rollback is in progress through GPO, respectively to versions 16.0.10417.20197 and 16.0.14334.20806.

Hoping to receive a new version that fix this quite soon.
SelfMan 0 Reputation points

2026-09-10T12:57:23.28+00:00

The Office 2024 LTSC build 17932.20976 has the same clipboard issues.
I posted about it on reddit.
https://www.reddit.com/r/microsoftoffice/comments/1wce61r/
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!
José Alfonso Casarín Hernández 0 Reputation points

2026-09-10T19:24:00.75+00:00

What about Office 2016? same problem here
José Alfonso Casarín Hernández 0 Reputation points

2026-09-10T23:40:22.3733333+00:00

Running this in powershell as admin and closing all office apps first:

Start-Process msiexec.exe -ArgumentList '/package "{90160000-0011-0000-1000-0000000FF1CE}" /uninstall "{27882596-A8ED-4382-9C71-6CD2DD19F732}" /qn /norestart' -Verb RunAs
Friedrich WILHELM 0 Reputation points

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

the command doesn't work:
FBACHPG98-6666 10 Reputation points

2026-09-11T06:45:08.1366667+00:00

We also have the issue with Office 2016. But as we only have very few remaining in our environment, we did not look at a rollback solution.
In my opinion, to rollback, you need to uninstall the Excel update (KB5002914). If not enough, I would uninstall all Office updates published on Tuesday (KB5002898, KB4011160, KB5002913, KB5002915, KB5002916, KB5002917, KB5002918, KB5002904)
FBACHPG98-6666 10 Reputation points

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

@Friedrich WILHELM : try running the command through CMD instead of PowerShell
Pablo Rendón 10 Reputation points

2026-09-11T07:24:37.4533333+00:00

Anyone using Office 2024 LTSC needs to revert to an earlier version of Office.

Here is the command you must run in CMD with administrator privileges:

"C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeC2RClient.exe" /update user updatetoversion=16.0.17932.20910

This will resolve the copy paste issue. Remember to disable automatic updates afterwards.
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
John G. Sullivan 0 Reputation points

2026-09-12T19:59:51.6+00:00

Uninstall of the Excel update KB5002914 solved the problem for me on Office Excel 2016.

Thank you for narrowing it down.
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**
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.
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.
Matthias Abele 10 Reputation points

2026-09-13T16:35:46.47+00:00

I updated to the mentioned version and have the same Issue now. Hope there is a fix asap
Matthias Abele 10 Reputation points

2026-09-13T17:19:33.8866667+00:00

I just run another update. Build 14334.20914 fixes the issue.
윤 의진 15 Reputation points

2026-09-13T22:55:23.8166667+00:00

Hello. Has the issue of errors when opening older versions of Excel XLS files in MS Office 2016 been resolved as well??
윤 의진 15 Reputation points

2026-09-14T00:46:40.0966667+00:00

Hello. Has this been applied to MS 2016, 2019, and 2021 as well?
GAVIN 0 Reputation points

2026-09-14T02:46:32.8566667+00:00

September 12, 2026 – LTSC 2021 Version 2108 (Build 14334.20914)

September 12, 2026 – LTSC 2024 Version 2408 (Build 17932.20996)

Only partially fixed; copy-paste still does not work for many Excel files.
Daniel Brailovski 5 Reputation points

2026-09-14T09:34:01.8466667+00:00

Same with Office 2024 Version 2408 (Build 17932.20996)
Matthias Abele 10 Reputation points

2026-09-14T11:01:40.6466667+00:00

Applied to MO LTSC Professional Plus 2021
John G. Sullivan 0 Reputation points

2026-09-14T21:27:01.3566667+00:00

Uninstall of the Office / Excel update KB5002914 solved the problem for me on Office Excel 2016.
Sz Gr 5 Reputation points

2026-09-15T12:48:42.6+00:00

Excel 2021 Version 2108 Build 14334.20914 still contains a Copy/Paste regression.
In my opinoin it is related to Conditional Formatting.
In affected worksheets, standard Copy/Paste, Ctrl+D and Ctrl+R fail when at least one Conditional Formatting rule exists. Paste Special > Values, Formulas and Formulas & Number Formats continue to work. Removing all Conditional Formatting rules, saving the workbook and restarting Excel restores normal Copy/Paste. Build 14334.20848 did not exhibit the issue.
Krautscheid, Tobias 0 Reputation points

2026-09-15T13:11:23.2533333+00:00

Same in our environment.
Krautscheid, Tobias 0 Reputation points

2026-09-16T08:09:17.1366667+00:00

The problem is still existing like Sz Gr explained. Is there any progress at Microsoft to fix this issue?

Answer 1

Pablo Rendón 10

Anyone using Office 2024 LTSC needs to revert to an earlier version of Office.

Here is the command you must run in CMD with administrator privileges:

"C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeC2RClient.exe" /update user updatetoversion=16.0.17932.20910

This will resolve the copy paste issue. Remember to disable automatic updates afterwards.

0 comments

Answer 2

Ha Luong Hoang 10

The Copy-Paste bug occurs in Version 2108 Build 14334.20906.

This issue can be temporarily resolved by rolling back to Version 16.0.14334.20848 using the command below.

@Pablo Rendón Thank you for your suggestion.

Must run in CMD with administrator privileges:

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

Maaz Azad 0 Reputation points

2026-09-14T16:28:42.6333333+00:00

Perfect, Thanx a million. Its working now!

Answer 3

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