Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Hi There,
I solve my problem.
Symptoms:
- Process Office 15 click-to-run running constantly 20% CPU
- Process MSOSYNC (document cache) 0% CPU and still restarting (on bacground)
The main problem is Document cache, because process MSOSYNC is not loaded and any orange tray icon (with arrow) as Office document cache in task bar is not visible.
How to solve this problem:
- disable service click-to-run (in services - set disabled)
- restart computer (click-to-run will be not loaded)
- open C:\Users\Username\AppData\Local\Microsoft\Office\Spw and delete all files
- open C:\Users\Username\AppData\Local\Microsoft\Office\15.0\OfficeFileCache and delete all files
- enable service click-to-run (set automatic)
- restart computer
The problem is solved - for me.

