I realize you bought one already, but why not just do a CTO of a Dell Precision, HP Z or Lenovo Thinkstation workstation? Why would you even entertain the idea of going to Best Buy any other physical store? They sell cheap junk for the average consumer.
With a business grade workstation, you'll have the option of whatever i9 or Xeon you want, plenty of slots for additional SSDs, the ability to go up to at least 512 GB of ECC RAM, and the latest professional graphics cards from NVidia and AMD. Plus a typically a larger chassis, better air flow, better support, longevity for critical BIOS updates. Other than my very first computer from 1995, I have never bought an off the self system all have been CTO/BTO directly though the manufacture. That is the only way to buy a computing device.
Next year when Windows 10 goes EOL, I'm planning on replacing my current desktop with a CTO HP Z8 with a lower tier Xeon Gold, 64 GB ECC RAM, some mid level NVidia Quadro-esq card and as usual I'll throw out the included drive and put in my own WD SSDs. 10, 15 or even 20% discount codes can be found for all three manufactures. When I ordered my HP mobile workstation at the end of 2019, best I could find was a 10% discount code, but it was still over a $400 savings.
And always do BIOS updates, they patch critical CVEs. I patch all of my devices at home as soon as a BIOS update is made available. At work I have literally installed hundreds of BIOS updates on HP and Dell desktops and laptops and never once had an issue. I work in IT for the federal government, machines are required to have the latest BIOS version as soon as internal field testing is complete, which is typically 30 days from release. Once a particular model has reached EOL and is no longer receiving BIOS updates we must remove all of them from the network. I have approx 150 HP EliteBook 630 G9s to upgrade to 01.11.04 Rev A by the middle of July. Updating the BIOS is no big deal and takes less than 10 minutes.
I have no idea what AVG Driver Updater is. Sounds like some hand holding software from bloatware masters AVG
Enter in the device serial number and you'll have the latest drivers for all components for your device. Download the latest ones, if there are adverse affects, download the previous version.