Hello, A: The error is generated in our software because it is denied permission to rewrite that file. A1: It is an internal network error: 30,01 A2: Yes, but not on the server machine, I’ll probably try that too. What’s worse is that If I configure that version to not update itself, it still does it anyway, so I’m guessing my only option here is to uninstall KAV. 1:Windows 7/8/10 2:It’s our in-house software 3:No. I’ll try that. 4:KAV report is useless in this case because nothing changes before and after the error.