Dear MichalJ I am thankful from your reply, no the product of ESET (ESET Endpoint Security) did not remove only the Agent (Eset Management Agent) of ESMC remove from the workstation
OS Type: Microsoft Windows
OS Name: Microsoft Window 7 Professional
OS version before upgrading: 6.1.7601
OS version after upgrading: 6.1.7601 (Only updated the operating system and other Microsoft related products)
ESET Security Management Center (Server), Version: 7.0 (7.0.577.0)
ESET Security Management Center (Web Console), Version: 7.0 (7.0.429.0)
ESET Management Agent: 7.0.577.0
ESET Endpoint Security: 7.0.2091.0