There can be various reasons for a RAR file to get corrupted, some of which are as follows:
This is why you are not able to access the files and extract them. ‘RAR access denied’ error is usually an indication of the RAR file being corrupt. Refer to the following section for a comprehensive explanation of why this error occurred. Fortunately, there is a way to fix it if your WinRAR file access is denied. This gets more frustrating when you have no idea how it happened in the first place. Unfortunately, even WinRAR is not equipped with any utility to fix such errors. You might have tried to fix it with some manual methods but you are down on luck. However, the important aspect of this error now is that your crucial data stored in that archive is inaccessible. The Winrar error “access denied” is a common issue that many users face.