Windows 10 GPSVC going crazy

Hello. Since I have installed win10 on this notebook, ASUS K45VM, weird things started to happen. Sometimes, after the logon, the following message appears on tray: "Windows cannot connect to group policy client service...". This is complete random. When this happen, I cant open anymore Google Chrome and File Explorer. When I try to open these programs, the programs take 10-15 minutes to start. All other programs seems fine. If I start it on security mode, I dont have the problem. I have already performed a clean install more than 7 times. Problem appears like 2~3 months after the clean install. Problem happened with win10 home and win10 pro.
Any clues?

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