Stuck background scan, database corruption, or conflict with real-time protection of another antivirus (never run two active antivirus suites).
| Antivirus | UI Process Name | | :--- | :--- | | F-Secure | fsmainui.exe | | Norton | uiStub.exe or NortonSecurity.exe | | McAfee | McUICnt.exe | | Kaspersky | avpui.exe | | Bitdefender | bdagent.exe | | Windows Defender | MSASCui.exe (older) or SecurityHealthSystray.exe | fsmainui.exe
: Managing the secure environment used for online transactions. System Statistics Stuck background scan, database corruption, or conflict with
While generally efficient, security UI components can occasionally consume higher resources during a system scan or update. The legitimate fsmainui
The legitimate fsmainui.exe lives exclusively in C:\Program Files (x86)\F-Secure\ or C:\Program Files\WithSecure\ . If you find it in C:\Users\[Name]\AppData\Roaming\ or C:\Windows\Temp\ , you are likely looking at a password stealer or a ransomware dropper using a similar naming convention to blend in.
You can verify the location of the file by following these steps:
Here are some features related to fsmainui.exe :