What does the OfficeC2RClient.exe file do?
The OfficeC2RClient.exe process is also known as Microsoft Office Click-to-Run Client and is a part of Microsoft Office (Version 365 - en-us, 365 ProPlus - en-us) or, as the case may be, Microsoft Project Professional (Version 2016). This software is produced by Microsoft (www.microsoft.com). An obsolete or defective version of OfficeC2RClient.exe can cause problems for your computer that can range from slowness to error messages such as these:
- Microsoft Office Click-to-Run Client has stopped working. Windows is checking for a solution to the problem... (Windows 10, 8, 7)
- Microsoft Office Click-to-Run Client has stopped working. A problem caused the program to stop working correctly. Windows will close the program and notify you if a solution is available. (Windows 10, 8, 7)
- OfficeC2RClient.exe has encountered a problem and needs to close.
- Access violation at address FFFFFFFF in module OfficeC2RClient.exe. Read of address 00000000.
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What you should know about OfficeC2RClient.exe Microsoft Office Click-to-Run Client
OfficeC2RClient.exe is not part of Windows, but it is important nonetheless. The file OfficeC2RClient.exe is found in a subdirectory of "C:\Program Files\Public Documents".
Frequently occurring are file sizes such as 13,179,660 bytes (72% of all these files), 6,186,272 bytes as well as 4 other variants.
It is no part of Microsoft Windows. The OfficeC2RClient file has a digital signature. This confirms that the producer has been registered with a certificate authority.
OfficeC2RClient.exe is capable of track other applications, interpret keystrokes as well as modify other Windows tasks.
For this reason, 2% of all experts consider this file to be a possible threat. The probability that it can cause harm is high.
A OfficeC2RClient.exe file has a 0% certainty of being dangerous if it is found in a subdirectory of "C:\Program Files". In this case, the file size is usually 978,672 bytes (66% of all these files) or, as the case may be, 977,680 bytes. The program appears as a window on the desktop. This file has a digital signature. This confirms that the producer has been registered with a certificate authority. The OfficeC2RClient file is not part of the Windows operating system. OfficeC2RClient.exe is capable of interpret keystrokes.
If you see this file on your hard drive or in Windows Task Manager, please make sure that it is not a malicious variant. It's a fact that many trojans try to cloak their true identity by calling themselves OfficeC2RClient.exe. With the above information or by using tools like Security Task Manager you can determine if, in your case, the file is an undesirable variant.
What do other computer users say about OfficeC2RClient?
The file spreads very slowly and does not often make an appearance. Therefore, feedback from other users is not yet available.
Summary: source: file.net
How to uninstall Microsoft Office or Microsoft Project Professional
To remove Microsoft Office Click-to-Run Client from your computer, please follow the manual instructions below or use an automatic uninstaller product.
- Click the Windows Start Button. You find it in the lower left corner of the taskbar.
- Type the word uninstall.
- Click Add or remove programs.
- Now locate Microsoft Office or Microsoft Project Professional in the list of displayed applications.
- Click the program, and then click Uninstall.


How to tell if OfficeC2RClient.exe (Microsoft Office Click-to-Run Client) was uninstalled cleanly
After uninstalling, restart your computer. Then start Windows Explorer and see if there is still a folder with the name of the software under C:\Program Files. Be sure to check the Registry as well for remnants of Microsoft Office Click-to-Run Client. To do this, start "Regedit", then look under "HKEY_LOCAL_MACHINE" > "Software" for Microsoft Office Click-to-Run Client or the name of the producer. Always keep in mind that only a computer professional should ever directly delete entries in the Windows Registry.
What to do if a program does not uninstall
The easiest way to remove any kind of software cleanly and accurately is to use an uninstaller tool. Because the uninstaller automatically creates a backup, there is no risk of anything going wrong.
Last but not least
If Windows not working quite right for you, or if startup is taking a long time, or OfficeC2RClient.exe is causing problems for you, a good Windows diagnostic tool may very well help. This is especially effective when it comes to older computers that have accumulated vast quantities of "garbage data" as the result of many software installs and uninstalls.
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