HP's new logo is an old one... from way back 2011.
It was a redesign endeavour from 2011 with Moving Brands to create a new noticiable brand built for the moving world.
As we've seen countless updates to other brands, HP's new logo - which will be used only on premium laptops - is a design exodus that transcended time considering it was already made public when the 13" Spectre was released.
With regards to big brands / companies, redesigns are a hefty marketing plan. It could either make or break the identity but sometimes its just a shallow dip with the toes to test the waters.
For me, the logo is a fresh (from the past) and clean look on the HP logo. I use the HP Pavillion with that old circular logo and I think I'd like to buy a sticker of this new logo and put it on top of the old logo, well thats my two cents on this.