I would recommend avoid HP product.
I also bought HP v155W 8 GB flash drive and realized when trying to register products that HP doesnt even have a mention of that product on their website, nor do they provide support or registration.
It seems they get these contract manufactured from a contract manufacturer in China (PNY I guess) who are allowed to sell on HP name.
I tried calling HP call center and emailed tech support, but they keep bouncing you from pillar to post.
I am now feeling cheated by HP and my sincere advice for everyone is to STAY MILES AWAY FROM HP PRODUCTS hereafter.