Boot Issues + Warranty Dispute Button Not Showing

[Doe4]

Hello, 

Having some trouble with my new PC booting. Seems to be related to connected USB devices. I have 3 USB devices connected: Razer Mouse, Steel Series Headset, and Logitech wireless keyboard adapter. 

I am using a DP cable for the monitor, and the power supply cable that came with the PC. 

My first boot up out of the box was hampered by USB devices and a combination of unplugging them and restarting the PC got it to boot up successfully. 

Got a couple of quick uses of the PC over the past few weeks without issue. Never shutdown the PC, only used sleep.

Came back today and the issue came back. After unplugging all connections, including power cable, holding power button to discharge completely multiple times, and booting up with only power and display (DP) connected it finally started. I am using the PC now after reconnecting everything. Anyone else run into this issue? 

Second problem:

Now that I am up and running however, my bigger problem is that my warranty is expired, even though the PC is only a few weeks old. After some googling, I found that HP starts the warranty from the date of manufacture (with some kind of undisclosed buffer period to account for shelf sitting at a retailer). I've followed the support steps to dispute the warranty, which involves a receipt of purchase. No problem except that the dispute button doesn't appear where is should according to the support post. There is a disclaimer on the support page that reads: 

NOTE: If the dispute link is not displayed, the product might be a commercial product, which cannot be disputed online.

This is wonderfully vague. Can anyone on this forum help me out? Phone support is unavailable on the weekend of course. I purchased this PC new on Amazon. If I don't have access to support and I run into hardware issues again I will be out of luck.

Thanks guys.

[Doe4]

Update: 

Went to get some updates on the HP Support Assistant after posting. A BIOS update was one, and it needed a restart to complete. After restarting I got stuck with no display signal, no power to USB devices, and no boot up. LED lights worked again though! Had to power down manually with the case button (scary during a bios update). After disconnecting everything except the power supply, booting up, then reconnecting all devices do I get a successful boot.

[Doe4 · Accepted solution]

Final update for anyone who finds themselves here from google search:

After finishing a slew of updates via Windows AND the HP Support center this boot issue has seemed to fix itself. 

The warranty was fixed after a quick phone call (weekdays only during business hours) to customer support and supplying them with a screen shot of the amazon order of the PC.