This became an issue suddenly. One day it was fine, the next it was doing this unpredictably.
So I decided to go ahead and reformat the thing and re-installed everything via the Asus-provided "AI Recovery Burner" program.
Annnd it's still having the same problems. Not only did I experience several errors when trying to do the million and one Windows updates, but it's still freezing and rebooting. Even in safe mode, it freezes. The timing of these things is unpredictable, it could happen 2 minutes after boot-up or, the computer could run fine for hours. So far, the freezing is much more common than the rebooting.
Assuming the issue was hardware related, I ran Memtest86 last night for 7 iterations and it turned up zero errors.
Please give me suggestions as to what could be wrong. Thanks in advance.