Why Does My Sound Quality Degrade over Time?

I have Windows 7, 64-bit, on an Asus motherboard with 8 GB of RAM. This issue is about my onboard sound. The sound degrades the longer the desktop is left on. By the fourth day, I’m getting static, audio dropouts, and even a sluggish wired mouse. As soon as I reboot, these issues disappear until two or three days later. I added a Diamond sound card which made matters worse, especially the static. Now, I’m back to my onboard sound. I’m at my wits’ end. I’ve been getting advice like “move the sound card” but there is no separate sound card and why would rebooting eliminate the problem?

This sounds like a software problem, possibly one that’s not related to your sound hardware at all.

Before I discuss how to deal with that, let’s check something.

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