In some point Mac users may have to come across with an error in Mac volumes which tells "invalid B-tree node size". Usually the emergence of this issue would take place in those volumes which are based on hierarchical file system. You can see this error during verifying integrity of directories and files by using disk utility. The most prominent reason for invalid b-tree node error is when the node size of B-tree is wrong that means invalid node sizes of B-tree. Moving to the solution and for resolving the problem one can try running fsck in single user mode. Hope this way you can resolve invalid b-tree node. But whenever any sort of data loss appear after that then one must go with effective data recovery. This can be done either-way which are through updated Mac backup or by third party solution. In case there is Time Machine backup available, find the backup and restore it. But unfortunately there is no such proper backup, Mac Data Recovery Software certainly comes in recovering all sort of lost and inaccessible data in handy manner. This is the right way to get rid of invalid b-tree node error successfully. So go for it!!
Fix invalid B-Tree node size error easily and get back the access of all your lost or corrupted files on Mac. As binary tree contains all the catalog information and file record so any kind of corruption in B-Tree directly means inaccessibility of of all your data. There are variety of reason which can cause corruption in binary tree formation and emergence of this very error. However you can fix invalid B-Tree node size error completely by running FSCK command on the terminal. It is command based utility, used to fix minor corruption issues on Mac operating system. But sometimes it has been found that in case of any serious corruption issue FSCK fails to resolve the problem completely. So if you are still unable to fix invalid B-Tree node size error, then don't worry there are some other option available which will definitely troubleshoot this issue easily from your Mac computer. In such situation the ultimate option to resolve this problem is to reinstall the operating system. Reinstalling of Operating System will resolve all the issues efficiently from your system and fix invalid B-Tree node size error. However it will also cause removal of all your precious files. Under such critical circumstances you can use third party tool in order to get back all your lost files.