Synology Cloud Sync Decryption Tool is a software product for Windows developed by Synology Inc.
It is reported that the following Windows processes are part of Synology Cloud Sync Decryption Tool:
If you want to remove Synology Cloud Sync Decryption Tool from your computer, just go to Start > Control Panel > Add/Remove programs and select Synology Cloud Sync Decryption Tool from the list of programs.