Distortion and cracking noises together with hitches in video

Hello,
I have a question concerning the quality of the media on my laptop, concerning both graphical and audio gliching sounds and video crashes. They seem to occur at the exact same time so I'm guessing there is a connection beween the two of them. The specs on my laptop are:
Hewlett-Packard HP ENVY 17 Notebook - 2,40 gigahertz Intel Core i7-4700MQ - 64 bit
I use my NVIDIA GeForce GT 740M video card mostly but I have tried switching between the other standard video card Intel(R) HD Graphics 4600.
I have been using this Notebook for a few months now for school (I'm using a pretty heavy 3D design program, inventor), music, films and games. Until now it completely lived up to my expectations and I'm a quite content user but these noises and distortions are killing me. They occur with both my headphones and without (just the speakers on my laptop) about every 5 seconds. My notebook proudly wears the Beats Audio brand (honestly I don't believe that should guarantee anything concerning audio quality, it just so happend to be on the laptop that had drawn my attention.)
Now I have done a little research on the subject, after trying basic solutions like reinstalling my audio drivers and in generally looking up previous updates and checking the log, I had found a few threats that suggested it might have something to do with windows. but the Windows 8 help proved not to be sufficient to solve the problem.
Can you maybe help me out on this case?
Thanks in advance for the help!
This question was solved.
View Solution.

Hello JustSomeUser,
Welcome to the HP Forums!
Thank you for providing the troubleshooting steps that you have already done. Due to the video hitching and sound quality being poor at this time. I would suggest restoring back to the original graphics drivers. I have included the document 'Using Recovery Manager to Restore Software and Drivers (Windows 8)', After reinstalling the original drivers, please restart your notebook. Now you will have to reinstall the updated drivers. I have included the document 'Using HP Support Assistant (Windows 8)'. Please follow the steps for Updates and tune-ups.
Does this happen across all programs, or just particular programs? Are the programs that it does happen on Internet based? What file type of movies, and music are you playing? What player are you using to play movies, and music?
As well could you provide me with the full model number of your Envy 17. If you need it, I have included the document 'Guide to finding your product number'.
Thank you.
I worked on behalf of HP

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