Please help me recover a corrupted Windows Server 2012 R2 VL ISO

Discussion in 'Windows Server' started by aj7749, Aug 23, 2016.

  1. aj7749

    aj7749 MDL Novice

    Sep 29, 2013
    35
    0
    0
    #1 aj7749, Aug 23, 2016
    Last edited: Aug 23, 2016
    Hi,

    I have this ISO but is corrupted (5 GB in size)

    I don't want to download the thing again (took me over a week), so I wrote a powershell script (see the attachment md5blocks.ps1.txt) that prints out the MD5 checksums for each consecutive 20MB blocks (see the attachment output.txt).

    Each line has three fields: (1) start offset, (2) end offset, (3) MD5 checksum for block from offset (1) to (2). For example,

    0000000000 0019999999 70a29568cf9a1735379d04fd4af25bbd
    0020000000 0039999999 28831129846a6d8f459ca039441cdd3c

    say:

    1. The block from offset 0 to 19999999 has the MD5 70a29568cf9a1735379d04fd4af25bbd.
    2. The block from offset 20000000 to 39999999 has the MD5 28831129846a6d8f459ca039441cdd3c.



    I have attached the script as a text file "md5blocks.ps1.txt". If you can help, can you rename it to "md5blocks.ps1" and execute it against a good, uncorrupted copy of the mentioned iso:

    And paste the output or upload an attachment here. Then I can compare with mine to see which parts are corrupted.

    The script is basically a short piece of C# code that reads the iso in 20MB blocks, computes the md5 for each block and prints it. Nothing more.

    Thank you for your help.
     

    Attached Files:

  2. Oz

    Oz MDL Expert

    Sep 1, 2009
    1,043
    703
    60
    #2 Oz, Aug 23, 2016
    Last edited: Aug 23, 2016
    How about a torrent to run your faulty iso against?

    Then you "finish" what you have.
     

    Attached Files:

  3. aj7749

    aj7749 MDL Novice

    Sep 29, 2013
    35
    0
    0
    Thanks I already solved the problem, and I can't use torrent for some reasons anyway.
     
  4. Mulligan17

    Mulligan17 MDL Junior Member

    Aug 2, 2016
    51
    6
    0
    Maybe use small SVFs in the future...:)
     
  5. LostED

    LostED SVF Patch Lover

    Jul 30, 2009
    4,302
    10,194
    150
    QuickPar is the easy solution in this case