What is the "officeclicktorun.exe" process on Windows 8? Is the "officeclicktorun.exe" process a virus? Can I terminate the "officeclicktorun.exe" process?

"officeclicktorun.exe - Microsoft Office Click-to-Run" process for "Microsoft Office ClickToRun Service" manages resource coordination, background streaming, and system integration of Microsoft Office products and their related updates. This service is required to run during the use of any Microsoft Office program, during initial streaming installation and all subsequent updates.

On the Processes tab of "Task Manager", "officeclicktorun.exe" process may be listed as:

Image Name            PID   User Name   Memory  Description

officeclicktorun.exe  1116  SYSTEM      2156 K  Microsoft Office Click-to-Run

Additional information about "officeclicktorun.exe" process:

Command line:
   "C:\Program Files\Microsoft Office 15\ClientX86\OfficeClickToRun.exe" 
   /service
   
Started by: services.exe

Files used:
C:\Windows\Temp\officeclicktorun.exe_c2ruidll(2016070221004845C).log
C:\Windows\Temp\officeclicktorun.exe_streamserver(2016070221005045C).log
C:\Program Files\Microsoft Office 15\ClientX86
C:\Windows\System32\en-US\KernelBase.dll.mui
C:\Windows\System32\config\systemprofile\AppData\Roaming\Microsoft\...
   
Registry keys: 
Key  HKCR\PROTOCOLS\Filter\text/xml
Key  HKLM\SOFTWARE\Microsoft\Cryptography\OID\EncodingType 0\...
Key  HKLM\SOFTWARE\Microsoft\EnterpriseCertificates\...
Key  HKLM\SOFTWARE\Microsoft\Internet Explorer\MAIN
Key  HKLM\SOFTWARE\Microsoft\Office\15.0\ClickToRun
Key  HKLM\SOFTWARE\Microsoft\SystemCertificates\...
Key  HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AppCompatFlags
Key  HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options
Key  HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings
Key  HKLM\SOFTWARE\Policies\Microsoft\SystemCertificates
Key  HKLM\SOFTWARE\Policies\Microsoft\Windows\CurrentVersion\Internet Settings
Key  HKLM\SYSTEM\ControlSet001\Control\Nls\Sorting\Versions
Key  HKLM\SYSTEM\ControlSet001\Control\Session Manager
Key  HKLM\SYSTEM\ControlSet001\services\crypt32
Key  HKU\.DEFAULT\Control Panel\International
Key  HKU\.DEFAULT\Software\Microsoft\SystemCertificates\...
Key  HKU\.DEFAULT\Software\Microsoft\Windows NT\CurrentVersion
Key  HKU\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings
Key  HKU\.DEFAULT\Software\Policies
Key  HKU\.DEFAULT\Software\Policies\Microsoft\SystemCertificates

"officeclicktorun.exe" process is not a virus. You can terminate "officeclicktorun.exe" process or stop the "Microsoft Office ClickToRun Service". But it may affect Microsoft Office applications.

⇒ "dsAccessService.exe" Process on Windows 8

⇐ "bndaemon.exe" Process on Windows 8

⇑ Application Service Processes on Windows 8

⇑⇑ Windows 8 Processes Tutorials