I'm not all that familiar with Dell, but I do use Avast and Malwarebytes, and I've never had to do anything extra to exclude them.

As an extra precaution I do put Avast into silent mode when I install. It sounds to me like it might be a 3rd party anti-virus, or an app that Dell has that is preventing the install. I thought I saw another user have a problem with the updates being flagged by their anti-virus, which AV protection do you use?


Windows 10 build 16299
2018 Ultra
Intel i5-3550 @ 3.3GHz
p8z77-v pro
RAM: 32GB
Roland V-Studio 100
Alesis VX49

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