How Do I Decrypt a File on a Windows NTFS File System?
Since Windows NT, Microsoft has used the NTFS file system on its machines. The NTFS file system offers the benefit of security and encryption without any external software. One option with the NTFS file system is the ability to encrypt and decrypt files on the hard drive. This adds an extra layer of protection for your personal files. If you’ve encrypted a file on your Windows machine, you can take similar steps to decrypt it.