RAR file is used as a container that encloses different files/folders in compressed format. It is used to transfer bulky files over the internet and is also useful to save memory space on the disk. You can create the RAR archive with different compression tools reducing its total size. To use the received RAR archive, you have to extract first after downloading it. In some cases, you may get an error message called CRC error attempting to extract the RAR archive.
CRC (Cyclic Redundancy Check) is an error-detecting code used to check the changes happen data whilst being transferred over the internet. The CRC associated with the RAR file is meant for authentication of data and data integrity. The CRC code from the downloaded WinRAR file is compared with the original, and if a mismatch occurs the following errors arise-
These CRC errors with the .rar archives make the entire WinRAR file turns inaccessible. It is very disappointing when you encounter a CRC error message on an important RAR file and unable to extract any information from it. This CRC error may be raised when redundant bits are induced to the file or if storage media itself is damaged. Apart from this, there are some other reasons behind the CRC error in RAR file as:
The CRC errors with RAR files can be efficiently fixed using the WinRAR Repair software. This application performs thorough scanning on the corrupted RAR after CRC error and securely extracts all the files and folders. This handy application works on different versions of RAR file like WinRAR 2.00, WinRAR 3.50 WinRAR 3.70, WinRAR 2.90, WinRAR 3.80, WinRAR 3.90, WinRAR 4.00, WinRAR 4.20, WinRAR 5.00, WinRAR 5.50, WinRAR 5.60, WinRAR 5.70, etc.
Figure 1: Main Screen
Step 2: Browse the RAR file showing CRC error and click on the "Repair" button as shown in figure 2.
Figure 2: Select the RAR Archive
Step 3: Now, select the location where you want to save the repaired RAR file and click on the "Save" option.
Figure 3: Save the Repaired RAR Archive