In Microsoft Windows, the registry is a hierarchal database, which stores the configuration options and settings. It holds settings for low-level OS components and applications running on platform: device drivers, kernel, SAM (Security Accounts Manager), services, user interface and the third-party programs use registry. It also offers means of accessing counters for the profiling system performance. But in some situations, Windows registry may get damaged and the system can not boot up. In such cases, all your data become inaccessible and you come across data loss situations. At this point, you need to opt for Windows Data Recovery to get your valuable data back.

In a practical scenario, when you boot your Windows-based computer, you may come across any of the following error messages:

“Stop 0xc0000218 (0xe11a30e8, 0x00000000, 0x000000000,0x00000000)
UNKNOWN_HARD_ERROR

Or

“Stop: 0xc0000218 {Registry File Failure}
The registry cannot load the hive (file):
\SystemRoot\System32\Config\SYSTEM or its log or alternate.
It is corrupt, absent, or not writable.”

The parameters, which are defined in parentheses are specific to the system configuration and might different every time. In such cases, you need to find out the cause of this problem and perform windows data recovery by fixing it.

How to fix UNKNOWN_HARD_ERROR

To sort out this behavior, use any of the below methods:

1. Boot your system in Windows Recovery Console using Windows Boot disk. Run chkdsk /p command on affected Windows drive and then reboot your system. To check whether the problem is fixed.

2. Restore damaged or all registry files from an updated backup. If the backup is not available, go for next step.

3. Format your hard drive and reinstall the operating system. This method is able to fix all of the hard drive related problems, but also removes data from the drive and need windows data recovery software to be handled.

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