7 Zip Data Error Solved Assignment

The file does unpack properly. I have downloaded and verified that it imports from OVF to a working VM, I'll check on windows next.  Perhaps there is some other issue?


Can you please share what tool you were using to attempt to unpack the compressed file?  7za on windows would be the most appropriate to use, which can be obtained from http://www.7-zip.org/.


On linux or macos command line, the p7zip tool can be used from the command line, as well as unrar, tool. For ubuntu this is discussed here:




If you are using an appropriate tool to unpack the file, it might be that the download is somehow failing to complete.


The following article from microsoft details how to perform SHA1 checksums of a download file (which we list the values you should see returned on the download page).




The file might not unpack if you are running on a 32bit OS as well... Its meant for use on 64bit OS.





Manually editing the Windows registry to remove invalid Error 104 keys is not recommended unless you are PC service professional. Incorrectly editing your registry can stop your PC from functioning and create irreversible damage to your operating system. In fact, one misplaced comma can prevent your PC from booting entirely!

Because of this risk, we highly recommend using a trusted registry cleaner such as Reimage [download] (Developed by Microsoft Gold Certified Partner) to scan and repair any Error 104-related registry problems. Using a registry cleaner [download] automates the process of finding invalid registry entries, missing file references (like the one causing your 104 error), and broken links within the registry. A backup is automatically created before each scan, with the ability to undo any changes in a single click, protecting you against the possibility of PC damage. The best part is that repairing registry errors [download] can also dramatically improve system speed and performance.

Caution: Unless you an advanced PC user, we DO NOT recommend editing the Windows registry manually. Using Registry Editor incorrectly can cause serious problems that may require you to reinstall Windows. We do not guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk.

To manually repair your Windows registry, first you need to create a backup by exporting a portion of the registry related to Error 104 (eg. 7-Zip):

  1. Click the Start button.
  2. Type "command" in the search box... DO NOT hit ENTER yet!
  3. While holding CTRL-Shift on your keyboard, hit ENTER.
  4. You will be prompted with a permission dialog box.
  5. Click Yes.
  6. A black box will open with a blinking cursor.
  7. Type "regedit" and hit ENTER.
  8. In the Registry Editor, select the Error 104-related key (eg. 7-Zip) you want to back up.
  9. From the File menu, choose Export.
  10. In the Save In list, select the folder where you want to save the 7-Zip backup key.
  11. In the File Name box, type a name for your backup file, such as "7-Zip Backup".
  12. In the Export Range box, be sure that "Selected branch" is selected.
  13. Click Save.
  14. The file is then saved with a .reg file extension.
  15. You now have a backup of your 7-Zip-related registry entry.

The next steps in manually editing your registry will not be discussed in this article due to the high risk of damaging your system. If you would like to learn more about manual registry editing, please see the links below.

We do not claim any responsibility for the results of the actions taken from the content linked below - complete these tasks at your own risk.

Windows XP

Windows 7

Windows Vista
http://support.microsoft.com/kb/2688326 - LetMeFixItMyselfAlways

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