OfficeClicktoRun stands for Microsoft Office 365 Click- to- Run Service Microsoft Corporation, founded in April 1975, was (by revenue) the world's largest software producer in 2016. Any Click-to-Run Office app executes in a virtualized ('sandboxed') environment, with this service active in the background providing automate quick and online repairs for Office. Click-to-Run's streaming ability lets use of the app start while downloading and installation goes on in the background, but once installed the app can be used offline. The App-V client does not install an app on the local computer, always receiving streamed data from a server. It gives subscribers streaming and virtualization capability for Office applications that is based on App-V technology, with a key difference. It usually installs in 'C:\Program Files\Microsoft Office 15\ClientX64\officeclicktorun.exe', (or '\ClientX86\'). 'OfficeClickToRun.exe' is a Microsoft Windows service associated with Office 365 online subscriptions. The genuine OfficeClickToRun.exe file is a software component of Microsoft Office 365 by Microsoft Corporation.