Windows 2008R2 File system problem

Hyper-V is hosting a guest-os, WinXP. One of the physical hard drive(say K) is directly connected to Guest-os, using Hyper-V setting. This physical hard drive(K) is completely dedicated to Guest-os. This physical hard drive(K) is disabled from the point of view of Host-os.

This setup worked fine for a while.... One day the guest-os corrupted the physical hard drive's filesystem. I disconnected the physical hard drive(K) from Guest-os, and unhid it from Host-os. I was trying to run chkdisk using Host-os. Host-OS, Windows 2008 R2 could not complete chkdisk. In the end OS froze and even shutdown also hung saying "waiting for windows Event service", then I had to powered off.

I rebooted the machine and began by stopping Hyper-V service. Then successfully ran HD Tune, verified the hard drive. Then I tried to run chkdsk and it failed again. Like before OS froze and had to power-off.

Then, I opened the machine, manually took out the drive(K) and connected to laptop as external hard drive. Laptop running WinXP, ran ChkDsk without any problem. I also formatted the drive (K), and changed the SIGNATURE .

I connected the drive(K) to Windows 2008R2 again. I had changed the signature of hard drive, to eliminate any chances of Hyper-V service accessing physical device but this did not help; Storage manager hung as before.

Finally I manually took out Segate drive from machine...

Windows 2008R2 - Audacity problem

I am a longtime Audacity user on Windows XP. With Windows 2008R2 I am having strange problems.

I start Audacity, and record for 50sec, and save it as MP3 file. I verify the recording quality and sounds fine. Then I record for longer duration; this time audio file is completely useless, hell a lot of noise.

No I am not under digital hallucination.

Windows 2008R2 audio crackling

Windows 2008R2

Sound card
Audio card: Auzentech X-plosion 7.1
Audio controller: C-Media (
DirectX: 11
Output port: SPD-IF

MP3 audio skids, makes crackling sounds. All windows sounds like IM, have been disabled. Cracking sound increases when I open 'Device Manager' or 'Browse directory'. MP3 files are on a separate physical hard drive. This problem persists even when the OS is practically idle(no internet browser, video player, Adobe, msword, etc..). This is playing MP3, not streaming or playing DVD.

1) AudioDg.exe is not taking lot of memory. Event Viewer says: "Windows Audio Device Graph glitch threshold count exceeded". Most probably this is the culprit. Every audio goes through this stupid exe.

2) I did not have any such problem with previous OS that is WinXP. Current OS is a fresh/clean install.

I may have to go back to Win32XP because I see many other symptoms that tell something is really wrong.