What is ERUNT?
ERUNT (Emergency Recovery Utility NT) is a free, open-source software utility for creating full backups and restore points of the Windows registry. It was designed as a way for advanced Windows users, administrators, and technicians to easily back up the Windows registry before making major system changes like installing new hardware, drivers, or software applications.
Key features of ERUNT include:
- Creating full backups or exports of the Windows registry in standard Windows registry file formats
- Scheduling automated backups on a recurring basis, e.g. daily or weekly
- Comparing registry files or snapshots side-by-side to check for changes
- Restoring the registry from a backup with a few clicks if issues emerge after system changes
- Portability and customization including running directly from a USB drive if needed
- Digitally signing registry backups to ensure integrity and prevent tampering
- Free and open source software with full source code available
For advanced Windows users who routinely make significant changes to their systems, ERUNT serves as a way to easily back up and restore the critical Windows registry when needed. It creates reliability and provides a safety net before editing the registry manually or when testing new software, drivers, or hardware configurations that could destabilize Windows if the changes trigger incompatibilities or issues.