Windows Media Player 12 stuttering

A Bad Day

Distinguished
Nov 25, 2011
344
0
18,930
I've noticed that sometimes the HD videos downloaded from Youtube I play don't stutter at all, and other times they have severe stuttering (which usually occurs in the evening).

There were no other programs running other than background tasks, the CPU usage was low, but the hard drive usage was always close to max.

Laptop: Asus N61jq
CPU: i7 720qm (1.6 GHz, quad core)
GPU: Radeon HD 5730, CCC driver 12.11 beta
RAM: 8 GB
OS: Windows 7 SP1 64-bit Home Premium

EDIT: In order to stop the stuttering, I have to set the slider to a previous part of the video I've already seen and then repeat it until the video is over.
 

A Bad Day

Distinguished
Nov 25, 2011
344
0
18,930
This is how my 320 GB hard drive is partitioned:

42905768.jpg


The F: partition is where the videos are stored in. I've tried defragging it, but it always stays at 31% fragmentation.