How can I fix a corrupt ZIP file?

Anuvab Chhotray June 3, 2011

I am using a GPRS connection to access internet on my PC. I put a 226.5 MB download from and since it is resumable, I paused and resumed the download whenever I wanted to. Now the download has been completed and when I extract the ZIP file with WinRAR, it says CRC failed in filename.ext. The file is corrupt. What do I do now? Remember it’s a ZIP and not a RAR.

  1. MN Samuals
    September 27, 2014 at 12:26 am

    First you go with utility as mmicky suggested you but if also you are wondering for another best utility then i suggest you remo Repair Zip. Just try it once...

  2. mmicky
    May 7, 2012 at 12:14 pm

    Try to download it agin , if still you are facing corruption and damage or use an repair zip file software to recover your damaged and corrupted Zip file. This is the best to make repair your Zip folder which is inaccessible.

  3. Socrtwo
    June 3, 2011 at 8:07 pm - like DiskInternals ZIP Repair is also free.
    Of the commercial ones, this was the only one which save a recent file:

  4. Anonymous
    June 3, 2011 at 4:32 pm

    Is the zip a single file or multiple files?

    attempt to extract this file again into any folder. This time when WinZip halts
    and presents you with a "bad CRC" error message, DON'T click the
    OK button immediately. Go to the folder that WinZip uses as a temporary
    unzipping folder. The location of this folder will depend upon your version of
    Windows. In older versions, it was typically C:Temp, but in Windows 7 it is
    C:UsersYour NameAppDataLocalTemp. If unsure, open WinZip and look
    in Options / Configuration / Folders.

    Once you've opened WinZip's temp folder, you should see the bad file being held
    in limbo by WinZip. Make a copy of the file by using your right mouse button to
    right-drag the file to a blank space within the same folder or another
    destination folder, release the button, and choose Copy Here. Then go
    back to the WinZip error message and click that OK button. WinZip will
    take this as its cue to delete the corrupt file from its temp directory, but you
    will now possess a copy that is safe from WinZip's censorship. Make sure your
    copy's filename exactly matches that of the original.

    well if  CRC failed then you have to redownload again, othet than this you can try to extract with 7zip or to repair the zip file if possible.

    Advanced Zip Repair(AZR)

    Methods to try fixing invalid Zip files with the command line add-on

    DiskInternals ZIP Repair

    BigSpeed Zipper
    If you know the URL (address) of the file you can employ BigSpeed
    Zipper (freeware) to open the contents of a ZIP file on the remote server.
    You can then re-download only the file you need (instead of the whole compressed

    • Anuvab Chhotray
      June 4, 2011 at 5:59 am

      7-Zip says files is broken.What Should I do now?

      • Anonymous
        June 4, 2011 at 7:48 am

        with winrar try this method
        1. Open the .rar file(s) you would like to extract.

        2. Click on "Extract to"

        3. In the miscellaneous options, check "Keep Broken Files".

        try also Universal Extractor

        The last option will be to redownload the files again using a better download manager. Also possible the file is already corrupted on their server.

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