Unity won't start?

So, I’m new to Unity completely, last night I installed Unity, and got it to work once for like an hour, then when I tried to start it up again, it got stuck on the little startup window.

And I’ve left it on the start window for 20 minutes and nothing happened.

And I’m calling this the startup window because I don’t know what to call it.

Imgur

And just due to wanting to get rid of a lot of possible issues, I factory reset my computer, and it still does the same thing.

I’m at a loss, so I’ll link all pertinent information here, and hopefully someone out there can glean something from all of this. Thank you all so much for your time.

I’m using Unity 5.5.0 and Windows 10 Home 64 bit

Here’s my PC’s specs:

Intel Core i5-4960K 3.50GHz

8 GB RAM

Power Color R7 250 2G GDDR3

Here’s the crash dump:

Here’s a list of all of the programs installed right now:

AVG
Firefox
Steam
Unity
Adobe Creative Cloud 2017

Photoshop

Premiere Pro

Animate

Audition

Media Encoder

The working solution in this situation was to disable and/or set a rule in AVG to stop blocking unity from running.