How to Repair CRC Failed in the Encrypted File 7-Zip?
"I downloaded a large sized ZIP file from the Internet and to protect from external threats I encrypted the file, but when I tried to extract it using 7-Zip application it displayed a CRC error message and I am not able to extract the file. Can anyone suggest me some tool to resolve the issue and also say why it happened? So that I can avoid in future."
Why you get CRC errors?
CRC stands for cyclic redundancy check. A CRC error is encounter when some data in your .zip or .zipx file is damaged. 7-Zip program calculates a CRC value and store it in the Zip archive whenever you add a file to a Zip file. Later, when you extract the Zip file, 7-Zip calculates the CRC value of the extracted file and compare the value with the stored value when the file was zipped. If the two values does not match then 7-Zip will show a CRC error. It might not be possible to access the Zip files correctly, if the data in a Zip file is damaged. The damaged data can affect the complete Zip file, one file or multiple files.
Some familiar reasons for these error occurrences:
There might be various reasons behind CRC failed in the encrypted file 7Zip like corruption in Zip file due to presence of bad sectors on the drive, file extension errors, creating incomplete multipart Zip file due to interruptions and so on. Anyhow, in all these situations, you can make use of Remo Repair ZIP tool free demo edition to know 7 Zip CRC failed in encrypted file how to fix without affecting its original contents.
Solution to fix CRC failed in the encrypted file 7Zip - Remo Repair ZIP:
To successfully extract data from corrupt 7z files just make use of Remo Repair RAR. The powerful in-built scanning algorithms of this tool extensively scans the entire Zip file and fix the corrupt .zip file to recover inaccessible data from the Zip archive. It instantly resolves all the errors encountered while extracting the 7-Zip archive. The software gives the preview after repairing encrypted Zip file before its extraction. It comes with demo version by which you can know the effectiveness of the program and analyse its features before buying the actual product.
Step 1: : To fix CRC error in the encrypted file, install and run Remo Repair Zip tool on your laptop/PC and select the infected Zip files using "Browse".
Figure 1: Main Screen
Step 2: You shall see this screen after you hit the "Repair" button.
Figure 2: Repair Process
Step 3: Once the repair task gets over, preview all the repaired Zip files using the preview window.
Figure 3: Preview Files
Step 4: Save the repaired file on any desired location using "Save" option.
Figure 4: Save Repaired Zip Files