Installing FortiClient on infected systems
The FortiClient installer always runs a quick antivirus scan on the target host system before proceeding with the complete installation. If the system is clean, installation proceeds as usual.
Any virus found during this step is quarantined before installation continues.
In case a virus on an infected system prevents downloading of the new FortiClient package, use the following process:
- Boot into “safe mode with networking” (which is required for the FortiClient installer to download the latest signature packages from the Fortinet Distribution Network).
- Run the FortiClient installer.
This scans the entire file system. A log file is generated in the logs sub-directory. If a virus is found, it is quarantined. When complete, reboot back into normal mode and run the FortiClient installer to complete the installation.
Microsoft Windows will not allow FortiClient installation to complete in safe mode. An error message is generated. It is necessary to reboot back into normal mode to complete the installation.