Virusscope can't recognize suspicious behavior sometime

It’s very annoying to have to worry about this on my computer. I’ve reinstalled Windows several times and it’s still the same.

I tried writing a Virus Sample that can be checked from Virusscope (Generic.Trojan.C@1@1), Virusscope can be detected sometimes and I restarted my computer several times, still the same effect.

btw i use default windows setting i just install only Visual C++ Runtime 2005 - 2022
Thanks for read my report