A real-time scenario that reflects issues due to invalid data streams might come across while you are utilizing NT Backup utility to restore backup. The error message listed beneath reflects issues in invalid data streams due to which BKF files reach to inaccessible mode:

“Unable to restore”:

After encountering this error message, the restoration backup process gets cast aside or finished. Accordingly, the data stored in the .bkf files becomes non-approachable ensuing in critical data loss or data modification scenario.  The single solution to repair corrupt BKF file is optimization of an external BKF repair tool having expertise to remove BKF corruption due to invalid data streams.

Why This Error Encountered By Users?

The unknown data stream error might be the result of outside .bkf file holding data streams with some other Stream ID's,  that are unknown for Ntbackup.exe tool. When NT Backup utility finds unknown data streams then, it does not allow preceding backup process. Then again, puts the users in BKF corruption due to invalid data streams.

Suggested Solution For The Problem

BKF repair software is a well-developed backup recovery utility that intelligently repairs corrupt BKF file without any alteration in original files and folders. It successfully works to resolve Windows backup file error issues.