The protected folders still remain protected status and hold the original password once your system is reinstalled and ghosted. They can be opened and unprotected after you reinstall Easy Folder Guard. (To prevent any unexpected situations, we suggest you to unprotect those folders before performing any special operations)
Meanwhile, all data in the system disk (Disk C) will be lost after the system is ghosted or reinstalled. Therefore, do not store your important data in Disk C. If you have protected data in Disk C, unprotect it and then make a backup to another disk.
Readers also visited here: