Seagate external device

Since upgrading our AVG package we can no longer open our external Seagate drive can anyone please assist, we think it may be blocked by the AVG firewall, we have looked in settings and applications on our package but don't know how to rectify it, can anyone help.  An idiots guide step by step would be good for us.

Hello Phill,
We apologize for the inconvenience caused.
We will definitely help you to resolve the issue.
Please disable AVG features one by one and check which feature is causing this issue with the help of this article (https://support.avg.com/SupportArticleView?l=en&urlName=Disable-AVG-Antivirus&q=disabling+AVG&supportType=home).

Let us know which component is causing the issue to assist you further with better clarity.

Thank you.