Yeah, I'm about to completely wipe out my HP laptop and install an untainted version of windows.... hopefully that helps. What's a signature series laptop? I get great discounts from HP so I'm more inclined to buy hardware from there and install windows on my own.
This is 100% software based. Laptops come with too much bloatware. Backup your data, format and do a clean Windows install; right back to 100% performance.
And next time consider buying a Signature series laptop from Microsoft- they come with totally clean installs of Windows. It's the only way to go if you're not buying Apple, IMO.