HP has the worst load of factory bloatware of any make, which corrupts and throttles the first featherlight Windows OS. Most tech enthusiasts would not run such an install but would Clean Reinstall - Factory OEM Windows 7
. Everything you need is in the blue link.
Until then you can Clean Up Factory Bloatware - Windows 7 Forums
. However the amount of corrupting bloatware and useless factory utilties that HP lards in can actually compound corruption by it's uninstall, hence you must monitor System file integrity while you proceed. If after cleanup it doesn't meet the Windows 7 standard of instantaneous performance with zero hangs then I would reinstall.
I would not use any tweaking or optimizing suite with Windows 7 at all, as we regularly see the OS ruined by these. The tools recommended in the tutorials will maintain a reinstall perfectly if you guard what you install and run a Clean Boot.