It might have been working for 8 months but it is still the worst possible install of Windows 7 one can have. The HP factory preinstall is loaded with more bloatware and useless duplicate utilities that have better versions built into Windows 7. It is a corrupt install from the day its turned on and only gets worse until you Clean Reinstall - Factory OEM Windows 7.
You may have never known what it is like to run native Windows 7, a featherlight, instantaneous OS that never hangs or bogs unless it is ruined by all the preinstalled crapware.
So look over the steps for reinstall and ask back any questions you have. We will help you get a perfect reinstall so issues like this are a thing of the past.
Otherwise work through the Troubleshooting Steps for Windows 7
and at least Clean Up Factory Bloatware
to given Windows 7 a fighting chance to perform like it wants.