If you are still using Microsoft Office 2016, you may have started experiencing frustrating problems such as Microsoft Excel crashing, freezing, becoming unresponsive, or suddenly refusing to copy and paste data.
These problems can be particularly disruptive in an office environment where employees regularly work with Excel spreadsheets, Word documents, reports, invoices, financial records, and other business documents.
One common symptom is that Excel stops copying and pasting normally. You may copy a cell or range of cells, but nothing happens when you try to paste. In other cases, Excel may freeze, close unexpectedly, or display an error.
Is Office 2016 the Problem?
Microsoft Office 2016 reached its official end of support on October 14, 2025. This means Microsoft no longer provides regular technical support, bug fixes, or security updates for Office 2016.
While the end of support does not automatically mean that Office 2016 will stop working, continuing to use an unsupported version can increase the risk of compatibility, security, and reliability problems.
If your organization is experiencing repeated Excel crashes or copy-and-paste problems, it is worth investigating both the Office installation and the wider Windows environment.
Why Is Excel Not Copying and Pasting?
There are several possible causes.
1. Office 2016 Is No Longer Supported
One of the biggest concerns with Office 2016 is its age.
Modern versions of Windows, Microsoft 365, cloud applications, browser-based services, and other business software continue to evolve. Older Office versions may not always work reliably with newer environments.
If an organization continues using Office 2016, compatibility issues can become increasingly difficult to troubleshoot.
2. Excel May Have Become Corrupted
An Excel installation can become corrupted over time because of:
- Failed Office updates
- Windows updates
- Damaged Office files
- Third-party software
- Add-ins
- System crashes
- Improper shutdowns
A damaged installation can result in Excel freezing, crashing, or failing to perform normal functions such as copy and paste.
3. Excel Add-ins Can Cause Problems
Third-party Excel add-ins can interfere with normal Excel operations.
For example, an organization may have add-ins installed for:
- Accounting software
- PDF applications
- Data analysis
- Document management
- Security software
- Business reporting systems
If Excel behaves normally in Safe Mode but crashes during normal operation, an add-in could be responsible.
You can test Excel Safe Mode by pressing:
Windows Key + R
Then type:
excel /safePress Enter.
Try copying and pasting data again.
If the problem disappears, investigate the installed Excel add-ins.
4. Clipboard Problems in Windows
Excel relies on the Windows clipboard when copying and pasting information.
Sometimes the problem is not Excel itself but a clipboard process or another application interfering with it.
A simple first step is to restart the computer and test again.
You can also clear the Windows clipboard by pressing:
Windows Key + V
and selecting the option to clear clipboard history, where available.
5. Large or Complex Excel Workbooks
Large Excel files can also cause performance problems.
A workbook containing thousands of formulas, external links, macros, images, pivot tables, or large amounts of data may take significantly longer to process.
This can make it appear as though copy and paste is not working when Excel is actually busy processing the operation.
Check whether the problem occurs with a new, blank Excel workbook.
If copy and paste works correctly in a new workbook, the original spreadsheet may be the source of the problem.
6. Windows and Office Compatibility Issues
Office 2016 was designed for an older generation of Windows and software environments.
If the computer has received multiple Windows updates while continuing to run Office 2016, compatibility issues can sometimes occur.
This is especially important for businesses that depend on Excel every day.
How to Fix Excel Copy and Paste Problems
Before replacing Office, try the following troubleshooting steps.
Step 1: Restart the Computer
It sounds simple, but restarting Windows can resolve temporary clipboard, memory, and application problems.
Step 2: Test Excel Safe Mode
Press:
Windows + R
Enter:
excel /safeThen test copy and paste.
If it works in Safe Mode, investigate Excel add-ins.
Step 3: Disable Excel Add-ins
Open Excel and go to:
File → Options → Add-ins
At the bottom, select:
COM Add-ins → Go
Temporarily disable the add-ins and restart Excel.
Test copy and paste again.
Step 4: Repair Microsoft Office
Windows provides an Office repair option.
Go to:
Settings → Apps → Installed Apps
Find Microsoft Office and select:
Modify
Depending on the installation type, you may see options such as:
- Quick Repair
- Online Repair
Start with Quick Repair.
If the problem continues, an Online Repair may be required.
Step 5: Test Another Excel File
Open a different Excel workbook and try copying and pasting.
If the problem only occurs with one particular file, the workbook itself may be damaged or contain problematic formulas, links, macros, or other objects.
Step 6: Update Windows
Make sure Windows is fully updated.
Although Office 2016 itself is no longer supported, keeping the operating system updated is still important for security and system stability.
Should Your Business Upgrade From Office 2016?
For businesses that still depend on Office 2016, upgrading should be seriously considered.
Microsoft 365 provides continuously updated versions of applications such as:
- Word
- Excel
- PowerPoint
- Outlook
- OneDrive
- Teams
Moving to a supported Office environment can also make it easier to maintain compatibility with modern Windows systems and cloud services.
However, simply installing a newer Office version may not solve every Excel problem. A proper IT assessment should identify whether the underlying issue is caused by the Office installation, Windows, add-ins, the specific Excel workbook, hardware performance, or another application.
Don’t Ignore Repeated Office Crashes
If Excel is repeatedly crashing, freezing, or failing to copy and paste, don’t assume that the computer simply needs to be restarted every time.
Repeated application failures can indicate a deeper problem.
For businesses, this can result in:
- Lost productivity
- Lost work
- Data corruption
- Employee downtime
- Delayed reports
- Increased IT support costs
- Security risks from unsupported software
If multiple computers in the office are experiencing similar problems, the issue should be investigated at the organizational level rather than troubleshooting each machine individually.
Need Help With Office and Excel Problems?
If your business is still using Office 2016 and employees are experiencing Excel crashes, freezing, or copy-and-paste problems, an IT professional can assess the environment and determine the best solution.
At Etuu Technologies, we provide managed IT support for businesses, including software troubleshooting, Microsoft Office support, Windows support, device management, cybersecurity, and IT maintenance.
Our goal is to help businesses keep their computers, applications, and IT infrastructure reliable and secure.
Don’t wait for Excel to crash before addressing an aging Office environment.
Contact Etuu Technologies for professional Managed IT Services and Microsoft Office support in Kenya.
