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System/Windows 7 Lockup During DVD Playback
For many months I've been putting up with this annoying & very puzzling issue & have attempted to toubleshoot it many times to no success.
Problem: On some days, when I play DVD videos on a media player, (I've tried WMP12, Corel WinDVD 2010 Pro, & ArcSoft TMT 5) about 10-60 minutes into the video the system would lockup. The HDD activity light would be off (no disk activity but HDD still running) & the num lock on the keyboard is frozen (therefore, Windows is frozen). This lockup only occurs when I play DVD videos. Also, there are sometimes several days when I could play DVD videos through fine. So this lockup seems quite random, but it keeps coming back. Sometimes the lockup occurs twice in a day, after I restarted the pc & played the DVD again. The event viewer does not log any possible errors, since it counts as a unexpected shutdown (I have to use the power button).
I have no external codecs packs installed. The internet is not connected during DVD playback. I have all latest Windows 7 x64 updates & SP1.
Programs Installed: Adobe (Air, Flash Player 10, Photoshop CS5, Reader 10.1), ArcSoft TMT 5, Avast Free AV, PowerArchiver 2010, Creative Console Launcher, Logitech SetPoint, MS (Office 2007, .NET Framework 4, all Visual C++ Redist 2005-2010, NVIDIA System Monitor, Raxco PerfectDisk 11 (for HDD only).
Latest x64 Drivers Installed:
GPU-Forceware v275.33
M/B-nForce v15.58
Sound Card-X-Fi Titanium v2.17.0008
Things I have tried to attempt to solve it but didn't work (still had several lockups after weeks of testing DVDs):
1. Changed from WMP12 to Corel WinDVD 2010 to ArcSoft TotalMedia Theatre.
2. Changed my Samsung RAM to new Kingston RAM. Set driver control panels to default settings (NVIDIA & Creative).
3. Disabled all startups & non-windows services (clean boot).
4. Reinstalled Win 7 x64 + SP1 all latest updates & drivers. Then tried WMP12 only.
5. Changed from HDD to SSD, installed OS + SP1 all latest updates & drivers on it. Then tried both WMP12 & ArcSoft TMT 5.
And yet the problem still persists O_o. What is this issue (hardware or software)? What does the HDD activity light remaining off mean (is it due to Windows freezing)? Any suggested possible solutions would be highly appreciated, since I like to watch movies on my pc & it used to play DVDs fine. Thanks in advance.