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Cannot install Windows Server 2008 R2 Standard on Hyper-V or SCVMM Console

I cannot get Windows Server 2008 R2 Standard to install on Hyper-V or SCVMM Console from the mounted ISO file or physical disk.

I keep getting this error at exactly 34% while Expanding Windows files,
"Windows cannot install required files. The files may be corrupt or missing. Make sure all files required for installation are available and restart the installation. Error code: 0x80070570"
when installing from the ISO

I keep getting,
"A required CD/DVD device driver is missing. If you have a driver floppy disk, CD, DVD or USB flash drive, please insert it now.
Note: If the Windows installation media is in the CD/DVD drive, you can safely remove it for this step."
when installing from the DVD.

I can create Windows Server 2008 SP2 Virtual Machines all day long (as well as Server 2003, Windows 7 and Windows XP).

I have downloaded the ISO from the Microsoft Licensing site a couple of times to make sure the ISO is not corrupt. I know it works because I have burnt it to DVD and used it to build physical servers in my test lab.

My base server (SCVMM Console Machine) is currently running 2008 R2 with 6GB of RAM.
I have created several test servers using this console but always have errors installing 2008 R2.
To make sure it was not my current SCVMM machine, I built a second 2008 R2 server and ran the same tests... "Can I build a 2008 SP2 server...? CHECK, Can I build a Windows 7 machine...? CHECK, Can I build an R2 server...? NOPE".

I have tried creating an R2 virtual server using both the built-in Hyper-V Management Console and in SCVMM... both to no avail.

Somewhere during a Google search I ran across a post that said something about having the proper RAID controller drivers available... but how would I go about finding those drivers?

Let me know what other information you would need to help me get 2008 R2 installed in my virtual environment.

Thanks in advance
 Error at 34% Expanding Windows Files
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1 Solution
See what controller the other OS's have installed ( particularly Server OS's ), and download appropriate drivers

I hope this helps !
mirthlessAuthor Commented:
Windows 2008 SP2 uses this

Msft Virtual CD/ROM ATA Device
File Version: 6.0.6002.18005 (lh_sp2rtm.090410-1830)

I need to create a 2003 server or windows 7 machine to check their properties but it is hard to believe that R2 would ship without even the most basic of CD/DVD drivers.
That is the CDROM drive, not the hard drive subsystem/ controller

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mirthlessAuthor Commented:
IDE controller:
Intel(R) 82371AB/EB PCI Bus Master IDE Controller
Driver Files:
File Version: 6.0.6002.18005 (lh_sp2rtm.090410-1830)

Is that what you were referring to?
mirthlessAuthor Commented:
DANG IT. I knew this would happen. As soon as I posted my question, I downloaded YET ANOTHER copy of the ISO file (fifth or sixth download) and this one seems to be functioning.

I am now able to install R2 successfully.
One thing I did do differently the first time I started a new install after downloading the ISO file again was during the hardware selection, when it came to the Virtual DVD Drive properties, I selected Secondary Channel (1) since Secondary Channel (0) said "In Use". I thought somehow this was causing the conflict.
Turns out that is not the case although choosing that option may have loaded some driver and caused it to suddenly start working.

Bottom line, its working after poking around on it enough and downloading yet ANOTHER copy of the Windows 2008 R2 Standard ISO file from the Microsoft Licensing site.

Thank you for your help
I also received this error when i was trying to install Windows Server 2008 std using Hyper-V, and like mirthless, it turned out that the downloaded file from Microsoft was corrupted. I therefore used the Download Manager that Microsoft suggest you use when you attempt to download it and worked immediately for me.

I did not do anything with Secondary channel or play around with boot options, only to point to the physical drive during the setup of a virtual server.
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