Typically a corrupted F-Secure installation, damaged Windows system files, or a conflict with another application.
, a piece of polymorphic code tried to disguise itself as a harmless text file. But the underlying engine saw the jagged edges of a trojan. With a silent command, the file was whisked away to the Quarantine Vault fsmainui.exe fsmainui.exe
Malware authors often name their processes similarly to legitimate system files to avoid detection. While fsmainui.exe is not a common target for mimicry (unlike svchost.exe or explorer.exe ), it is not impossible. Typically a corrupted F-Secure installation
to relay security statistics and policy updates to the user. Troubleshooting : If the UI fails to open, users sometimes use software rendering damaged Windows system files
The typical full path is: C:\Program Files (x86)\F-Secure\Common\FSMUI\fsmainui.exe