Am already an OmniTech client. Tried to go to a we

Am already an OmniTech client. 

Tried to go to a website earlier today. Rec'd a communication box that told me that I had a very serious threat to my system.  THings were happening fast and I closed out of Explorerer as quickly as possible. 

Would like OmniTech to check to make sure I'm not infected. 

I'll leave my system on so that you can check things out.

Thanks!