Analysing the BSODs in the log, the BSOD is caused by atikmdag.sys. This is an ATI graphics file. The graphics driver version is almost as old as Windows 7 itself:
Graphics: ATI Radeon HD 3450 - Dell Optiplex (ATI Technologies Inc.)
Graphics Driver: 8.680.0.0 Dated 2009/11/18
I suspect that the DisplayLink software is exposing a bug in the ATI graphics driver causing the Blue screen. I would check for and update the ATI graphics driver for Windows 7 for this graphics card, reboot and see if that solves the issue.
I think the ESET virus checker is not directly responsible for this.
Wim
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