Kernel for SQL Database Recovery

Repair corrupt & damaged MS SQL database files.

  • Repairs corrupt/inaccessible database files of any SQL server version.
  • Recovers all database objects: tables, triggers, rules, functions, deleted records, etc.
  • Smooth recovery of large-sized MDF/NDF ransomware affected files.
Read more

System Requirements

Before you start installing Kernel for SQL Recovery, make sure that your computer meets the following requirements.

Minimum System Requirements
  • Pentium Class Processor
  • Minimum 64MB RAM (128 MB Recommended) 10MB free space for
  • Disk Space -Enough disk space to save the results
Required Operating Systems

The software requirements for installing the software can further be grouped into two categories –Operating System requirements and SQL Server version requirements. The requirements are as follows:

  • Windows XP
  • Windows 8/8.1
  • Windows 8/8.1
  • Windows 10
  • Windows XP
  • Windows Server 2000
  • Windows Server 2003
  • Windows Server 2008
  • Windows Server 2008 R2
  • Windows Server 2012
  • Windows Server 2016
  • Windows Server 2019
Supported MS SQL Server Versions:
  • SQL Server 2000
  • SQL Server 2005
  • SQL Server 2008 R2
  • SQL Server 2012
  • SQL Server 2014
  • SQL Server 2016
  • SQL Server 2017
  • SQL Server 2019

Help Guide

Kernel for SQL Database Recovery

Install Kernel SQL Database Recovery

After downloading the installer file for Kernel SQL Database Recovery, you can install the software by running the file. To install Kernel SQL Database Recovery

  1. Double-click the Kernel SQL Database Recovery installer.
  2. Click Next on the software installation wizard.
  3. Click ‘I accept the agreement’ and click next.
  4. Choose the destination to install the software and click Next.
  5. Select Additional tasks and click Next.
  6. Click Install.
  7. Click Finish to launch the software.

Uninstall Kernel SQL Database Recovery

Kernel SQL Database Recovery

You may need to uninstall and re-install Kernel SQL Database Recovery. To uninstall Kernel SQL Database Recovery:

  • Click Start → All Programs → KernelSQL Database Recovery → Uninstall Kernel SQL
  • Click ‘Yes’ to uninstall Kernel SQL Database Recovery.
  • The software is successfully removed from the system.


Kernel SQL Database Recovery

Release History

16 Feb 2021 Kernel for SQL Database Gets Updated

Kernel for SQL Database gets a new version (V.21.1) which is more efficient and powerful. It now offers smoother and more effortless saving to live SQL Server or Batch file after SQL database recovery. The SQL database recovery is faster and more accurate even with large MDF files and MDF files with Unicode tables. Also, for corrupt SQL database files, the software asks for the SQL version to ensure complete recovery. With these enhancements, KernelApps hopes to ensure a better SQL database recovery experience to all its users.

19 Aug 2020 A new version of Kernel SQL Database Recovery released

A new version (20.8) of Kernel SQL Database Recovery is now available to download for users, which is upgraded with new functionalities and features. With this new version, minor bugs in the earlier version of the tool have been fixed. Also, the recovery of deleted records has been improved. The software now offers a very smooth repairing process for SQL database files.

21 Jan 2020 Kernel brings the Kernel for SQL Database 20.0

Keeping the trend of bringing the latest changes to their software, Kernel has updated an important software, Kernel for SQL Database. The latest version is Kernel for SQL Database 20.0 that is capable of a faster recovery for the corrupt and deleted items from the MDF/NDF files. The software handles the recovery procedure more efficiently.

10 Sep 2019 The newest version of Kernel for SQL Database Recovery is Now in the Market (Version 19.9)

Well! Finally, it is time to update Kernel for SQL Database Recovery! The tool has hit the markets with the new and improved version (19.9) of itself with enhanced efficiency and speed. All your SQL database related issues are now going to end with a remarkable performance.

30 Jul 2018 Kernel brings the latest version of Kernel SQL Database Recovery 18.2

Now recovering data from a corrupt SQL database (MDF/NDF) file is much more easy and secure with Kernel SQL Database Recovery 18.2. The tool can save data by creating a new database and saving data in it. You can see as much as 1000 records in the first page preview. Additionally, you can save a large amount of data in minimum time.

4 May 2017 Kernel for SQL Database Recovery Version 17.1 Released

Lepide Software has released Kernel for SQL Database Recovery version 17.1 with extended capabilities and software support. With these improvements, the tool can now deal with large-sized SQL databases more efficiently. Apart from MDF files, it can recover NDF files as well. With the enhanced functionalities, the tool can recover UNICODE characters too. And the tool now is compatible with Windows 8/8.1/10, SQL Server 2012/2014/2016/2017 and Windows Server 2012/2012 R2/2016.

30 May 2013 Kernel for SQL Database Version 13.05.01 Released

Lepide Software Pvt. Ltd. announces the successful release of updated version of Kernel for SQL Database software. Integrated with advance algorithm, the new revised version 13.05.01 is now competent enough to recover large and heavily corrupted databases in almost every condition. In addition, the new version supports data recovery from SQL server version 2012 and can also be installed on systems running Windows server 2012 OS.

19 Jul 2011 Updated version of Kernel for SQL database launched

Kernel for SQL Database version 11.07.01 is now available for users. The updated version of the software now supports MS SQL 2000, 2005, 2008 and 2008 r2. Embedded with more interactive GUI, the updated version of Kernel for SQL database will definitely enable users to more expediently resolve SQL database corruption issues.

31 Aug 2007 Kernel Recovery for SQL v7.08.01

The Kernel for SQL has been updated. The improved v.7.08.01 version now has much powerful recovery engine and effectively handles the major corruption.

30 Jul 2007 Kernel Recovery for SQL v7.07.02

Updated version of Kernel for SQL released today. Now with more powerful recovery engine, minor bugs of the former version have been fixed?in the?updated version 7.07.02.

17 Jul 2007 Kernel Recovery for SQL v7.07.01

Kernel Recovery for SQL version 7.07.01 now has much more powerful recovery engine than its previous version and effectively handles the major corruption.

18 Jun 2007 Kernel Recovery for SQL Launched

Nucleus Data Recovery the premier provider of best data recovery software and data recovery services announced the release of Kernel Recovery for SQL. The SQL database repair software effectively repairs the corrupt databases and recovers data from the corrupt .mdf files.

SQL Servers are generally used to store data on networked file servers. Many companies rely on these databases to remain accessible in order for the smooth running of their business.

Kernel Recovery for SQL retrieves data from the corrupt .mdf files and supports Microsoft SQL Server version 2000 and 2005. The SQL recovery software equipped with QFSCI technology promises fast, secure, accurate and result-oriented recovery of data.

Download Trial

Kernel for SQL Database Recovery

Download the trial version of the Kernel for SQL Recovery software to learn more about its features and working. The free version lets you recover the data and preview it. Once you are happy with the tool, you can buy the full version.

  • Available for free download with all the features except saving
  • A light-weight tool with easy installation in a few steps
  • Supports all Windows versions for installation
  • Get a complete preview of all database objects
  • Offers 24 X 7 technical support
Download Trial

Purchase the Software

Happy with the working of the free trial version of the Kernel for SQL Recovery? Purchase its license now. The full version lets you save all the recovered data.

  • Restore all SQL database objects
  • Recover Tables, Indexes, Views, Rules, Triggers, Stored Procedures, User-defined Functions
  • Save SQL Server data to live SQL Server or batch file
  • Get free technical support for a lifetime
See Pricing

Online Support

Customer support is not a service, it’s an attitude.

Our dedicated team is available 24x7 to provide fast responses to all of your queries. For any technical support you can register or submit a ticket here.

  • Register
    Register a new account to submit tickets. click here.
  • Submit a ticket
    Submit a new ticket for your query. Our support team will contact you. click here.
  • Knowledgebase
    Search support helpful articles and find answers to frequently asked questions. click here.
Contact Us

How to repair MDF file?

Database corruption and inaccessibility of MDF files are serious issues faced by SQL administrators. Such corruption errors can affect business operations and even lead to revenue loss and reputation damage. Thus, it becomes crucial to resolving these errors to save your data.

In this article, we will discuss the reasons behind SQL database corruption and how you can resolve these errors with common ways to repair MDF files.

Reasons for SQL corruption

MDF files of SQL database are prone to many corruption errors. And there can be many reasons for the corruption of MDF files, such as hardware faults, issues with disks, subsystems, drivers, controllers, CPU, or memory module. Some of the major reasons behind the MDF file errors are:

  • If the SQL database is stored in a compressed folder, chances are it will get corrupt
  • Corruption in the hard drive where the MDF files are stored
  • If there is a network failure while using the SQL database, which could lead to corruption
  • Any modification or changes made in the SQL Server account
  • If the data is deleted accidentally from SQL Server
  • The disk drivers are defected or not updated
  • Due to corruption errors in the file header
Read more

Restoring MDF Files From BAK Files – A Manual Solution

Manually Restoring MDF Database from a .bak File

Here, is a very quick and easy process by which you can restore your MDF files from the backup SQL file.

STEP 1: Firstly, connect to the database server using MS SQL Server Management Studio. Once connected, find Database node in the left pane and right-click to choose Restore Database.

STEP 2: Now, browse to select the destination and source.

  • Under Destination for Restore: Choose from the two options – To Database and To a point in time.
  • Under Source for Restore: Choose from the two options – From Database and From Device.
Read more

How to repair corrupt SQL Database?

Repairing corrupt SQL Server Database can be a tedious task if you don’t know the right technique. There is manual technique available to repair corrupt SQL database but a professional and authentic third-party software is always the best approach to do it. There are plenty of software available online for the purpose but finding the best one is again a big task. Before knowing about the SQL recovery solutions, you should know about SQL Server and reasons of its corruption.

What is SQL Server?

SQL Server is a database management system largely used for storing and retrieving data by other applications. Developed by Microsoft, SQL Server uses three types of files to store and manage data – Primary Files (MDF), Secondary Files (NDF) and Log Files (LDF).

  • Primary SQL Server database files have .MDF extension. Each database has one primary file and it store user data and objects including Indexes, Columns, Views, Functions, Values, Tables, Keys, Stored Procedures, Triggers, Default Values, etc. MDF files also store the startup information for the database.
  • Secondary files are optional and have .NDF extension. You can create unlimited number of NDF files as per your requirement. Commonly used to spread data across multiple disks, NDF files can be used to store user data as well.
  • Log files are basically the backup files of SQL Server database. They are used to restore the database in case of corruption. Log files have .LDF extension and store log information. Every database has at least one log file.
Read more

How to Identify MDF File?

MS SQL Server database corruption – how to identify and fix?

MS SQL Server, a Relational Database Management System developed by Microsoft, is widely being used by a great number of businesses to store their professional details. SQL has different editions that meet the requirements of clients ranging from small-size enterprises to large-scale corporate giants.

SQL corruption – common causes

MS SQL Server is vulnerable to different threats like database corruption and errors. Predominantly, it is the hardware errors that are responsible for the database corruption quite often. Faults in hard disk, controller, CPU, and memory unit can also harm the database as the SQL server is heavily dependent on them to store and retrieve the information. There major factors behind database corruption in MS SQL are–

  • The memory disk’s subsystems which store the database details may get affected by various issues. It will lead to the improper arrangement of table details in the database and ultimately the user will not get the desired information he is looking to retrieve. Software bugs also can also cause SQL corruption.
  • Anti-malware and anti-spyware are good for other files stored on the system, but they can be harmful for the SQL. That is why it is advised to exclude database from anti-virus scans.
  • Many users like to compress the database to save some space. But the database files are not meant to be compressed. It may increase the chances of corruption. Keeping backup files in a compressed database also increases the chances of database corruption. If the user really wants to compress the database file, then he must use the in-built data compression and backup tools present in the SQL Server.
Read more