Again Virus / Trojan warnings

[m^2]

I'm sorry, I don't speak Polish, so I'm not sure if this has been reported yet:
I recommended TCUP to one of my friends a few months ago. Now he claims operausb.exe is reported as a trojan by his antivirus. But what is the most severe problem, he can't find the second partition on his HDD anymore. Imagine, he started blaming TCUP and me for this unfortunate issue...
Does anyone know if these two problems are related somehow? It did happen to anyone so far?

Thanks!

PS: I sent my friend 2-3 days ago to post himself here and ask for solutions, but the site was down.

Thank you for the report, it's much better to have some issues reported twice than not at all.
We've heard that a previous version had some issues with Avast reporting a virus. It's fixed already, but with the current one eSafe and TrendMicro report some unspecified things.

Your friend's problems have nothing to TC UP or any of it's parts, I'm absolutely sure about it.
But let him come here, maybe we'll be able to help.