If it serves your needs fine, then there is no need to upgrade.
However, getting a new machine (upgrading at this point will just result in a new build) will lead to a noticeable rise in performance. Even a low end modern build (~$750) should outperform that by a fair bit.
Ok? Your statements of "video edit and game" are completely opposite of your rig as you'd have problems with both, although it may be fine if you are at a really low res. And maybe have a different definition of video edit.
Regardless, the HDD is an extremely minor component, and even a new one can fail. If your rig does what you want just replace the HDD. Keep backups. Etc.
If you want too upgrade we need more info. If you use this guide you'll get good responses
Thank you for responding, both, by video edit - I mean cutting and converting videos basic editing very basic. Gaming - that build can play anything i throw at it but in low settings. that's why, i was thinking in an upgrade but because is old i wasn't sure. if an upgrade video would work or is better to make a new one. I have decide to build a new one. i will use the guide when i decide to buy my computer. hopefully soon. thank you.