Run a to isolate and remove any residual threats. 3. Update Graphics Drivers
When encountering unknown processes in your Task Manager, take a moment to research and verify—like you've done today. A little knowledge goes a long way toward keeping your system secure.
Are you attempting to optimize your PC's because this process is causing lag during your flights? Share public link fsmainui.exe
: A "0xc0000135" error often means the program cannot start correctly, which can happen if system components like .NET Framework are missing or corrupted.
Another app might be conflicting with the security suite. How to Fix High Usage: Run a to isolate and remove any residual threats
Check the file's legitimacy by verifying these three properties:
fsmainui.exe is part of F‑Secure’s security products, which are often rebranded and sold by internet service providers (ISPs) around the world. The file serves as the main user interface for the security suite. Because F‑Secure licenses its technology to many different companies, you may find fsmainui.exe located in folders named after your specific ISP or local brand, such as: A little knowledge goes a long way toward
If you can access the main menu, navigate to > Data . Scroll down to Rolling Cache Settings . Click Delete next to the rolling cache file.
If the above steps don't resolve the issue, you may need to perform advanced troubleshooting: