The file compression tools like WinZip are used to compress our files and folders in the form of ZIP files. These tools reduce the file size considerably thereby saving a lot of disk space. In addition, these tools save you from the problem of getting virus infections. However, sometimes these ZIP files can get corrupt because of various reasons such as power outages, incomplete or broken downloads, CRC errors, etc. In such cases, you should repair ZIP file using appropriate corrective methods. If you are unable to fix the problem, then you should use a third-party ZIP recovery software to repair ZIP file.
Consider a scenario wherein you have downloaded an e-book from a tutorial website. After the downloading is complete, you try to extract the ZIP file but it fails to open. An error message is displayed, that is:
“WinZip Self-Extractor Zip file is damaged, truncated, or has been changed since it was created. If you downloaded this file, try downloading again.”
The most possible cause of this issue is that the ZIP file may not have been downloaded properly. It could have happened due to irregular Internet connection.
To resolve this situation, you should run the Windows ScanDisk utility to scan and repair any disk-related error. To do this, perform the following steps.
- Click Start | My Computer.
- Right-click C drive( or the drive in which the ZIP file is present) and click Properties from the context menu.
- Click Tools | Check Now.
- Select all the hard disks.
- Select the Automatically fix file system errors check box.
- Click the Start button to start scanning. The scanning will be finished depending upon the size of the hard disk.
Download the ZIP file again from the website.
However, if you still are not able to extract from the ZIP file or Internet connection is unreliable then you should use a third-party ZIP repair software to repair ZIP file. Such read-only tools are very user friendly that repair .ZIP file in a safe and secure manner.