When possible, don't allow administration access on the external
(Internet-facing) interface. To disable administrative access, go to
Network Interfaces, edit the external interface and disable HTTPS, PING,
HTTP, SSH, and TELNET under Administrative ...
I totally agreed with you my problem is solved completely.
https://community.fortinet.com/t5/Fortinet-Forum/forticlient-Tarde-7-0-5-bluescreen-bsod-windows-10-NETIO-SYS-or-SYSTEM/td-p/212901
Thankyou so much. Have a nice day to all…