I play on a Windows 10 computer and generally use the recording widget provided to record my playthroughs for SWTOR as I am trying to make a series. However when I've later gone back and sorted through the clips, the audio keeps stuttering and crackling at various points. I initially thought it was just minor but was far worse than I realized when others pointed it out. I've completely turned off the microphone and made sure I had nothing plugged in (i.e. headphones) when recording, but this has made no difference and these issues persist. Again, I use a 64-bit Windows 10 computer.

What can b done to fix this?

Again, I use a 64-bit Windows 10 computer.

Insufficient information. That machine over there in my appartement is a 64-bit Windows 10 computer, but ...

It's an i5-760. Four non-hyperthreaded cores, 2.8GHz nominal, turbo to 3.3GHz. It has 8 GB of DDR3 and an NVidia GT430, and can barely manage Medium SWTOR graphics (shadows *OFF*).

But it's a 64-bit Windows 10 computer.