: If the error persists, uninstall the product via "Installed Apps" and download a fresh copy from your service provider.
Are you seeing a specific or experiencing system slowdowns while this process is running? fsmainui.exe
A corrupted DLL that F-Secure depends on, or a failed update. : If the error persists, uninstall the product
| Condition | Verdict | |-----------|---------| | Located in C:\Program Files\F-Secure\ + Digitally signed by F-Secure/WithSecure | – Do not remove | | Located in C:\Windows\System32 or C:\Windows\SysWOW64 | Likely malware – Scan immediately | | Unsigned or signed by unknown publisher | Malware – Remove using antivirus | | Uses >300 MB RAM continuously with no scan active | Potential issue – Reinstall F-Secure | | Condition | Verdict | |-----------|---------| | Located
The signature should say Any missing, invalid, or third-party signature (e.g., "Unknown Publisher") is a major red flag.
: You cannot simply "End Task" on this process if "Self-Protection" is enabled. You must disable the security via the F-Secure settings menu first. 3. Troubleshooting Errors
(holding Shift while right-clicking the tray icon) to resolve display issues. F-Secure Community Security Analysis for a Technical Paper