{"id":865,"date":"2014-04-09T12:57:43","date_gmt":"2014-04-09T12:57:43","guid":{"rendered":"http:\/\/sysinfotools.com\/blog\/?p=865"},"modified":"2025-12-09T09:12:42","modified_gmt":"2025-12-09T09:12:42","slug":"repair-master-database-sql-server","status":"publish","type":"post","link":"https:\/\/www.sysinfotools.com\/blog\/repair-master-database-sql-server\/","title":{"rendered":"How to Repair Master Database in MS SQL Server?"},"content":{"rendered":"<div class=\"block_sum\">\n<p><strong>Summary:-<\/strong> The Master Database in MS SQL stores all the information about the pointers, users, and login credentials of the database. But the corruption issues can lead to inaccessibility of the master database. Here you can check some simple methods to repair corrupt Master Database in MS SQL 2019, 2017, 2016, 2014, 2012, and 2008. You can either use <a href=\"https:\/\/www.sysinfotools.com\/recovery\/ms-sql-database-recovery.php\"><strong>SQL Database Recovery<\/strong><\/a> Tool or try some of the manual approaches to fix the Master Database corruption issue.<\/p>\n<p class=\"blog-btn\"><a class=\"sum-d-btn\" href=\"https:\/\/www.sysinfotools.com\/demo-version\/SysInfoTools-MS-SQL-Database-Recovery.exe\"><i class=\"icon-windows\"><\/i> Download<\/a> <a class=\"sum-b-btn\" href=\"https:\/\/www.sysinfotools.com\/buynow\/ms-sql-database-recovery.php\"><i class=\"icon icon-basket\"><\/i> Buy Now<\/a><\/p>\n<\/div>\n<p>Master Database is very important for a SQL server, as it holds the primary configuration details of the SQL server. It contains the complete information of all database pointers, all the users and their login credentials. Any kind of corruption in the master database can cause a data loss in the master database file. This blog will help you to repair corrupt\/damaged databases. Here, we will be discussing how to repair master database in SQL Server easily. Before moving further, let\u2019s first know the symptoms and reasons for master database corruption.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_81 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<div class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/div>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.sysinfotools.com\/blog\/repair-master-database-sql-server\/#Symptoms_and_Reasons_for_Master_Database_Corruption\" >Symptoms and Reasons for Master Database Corruption<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.sysinfotools.com\/blog\/repair-master-database-sql-server\/#Fix_Master_Database_Corruption_in_SQL_Server\" >Fix Master Database Corruption in SQL Server<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.sysinfotools.com\/blog\/repair-master-database-sql-server\/#Method_1_Fix_Corruption_From_Backup_File\" >Method 1: Fix Corruption From Backup File<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.sysinfotools.com\/blog\/repair-master-database-sql-server\/#Method_2_Remove_Corruption_by_Rebuilding_Database\" >Method 2: Remove Corruption by Rebuilding Database<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.sysinfotools.com\/blog\/repair-master-database-sql-server\/#Method_3_Use_Automated_Tool\" >Method 3: Use Automated Tool<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.sysinfotools.com\/blog\/repair-master-database-sql-server\/#Conclusion\" >Conclusion<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Symptoms_and_Reasons_for_Master_Database_Corruption\"><\/span>Symptoms and Reasons for Master Database Corruption<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>There are certain incidents which indicate that SQL master is having some corruption-related issues like:<\/p>\n<p><strong>Symptoms<\/strong><\/p>\n<ol>\n<li><strong>Segmentation fault and input\/output errors:<\/strong> Corrupt database can result in making various errors.<\/li>\n<li><strong>SQL Server could not be started:<\/strong> It is quite difficult to start if the master database file gets damaged.<\/li>\n<li><strong>DBCC report mentioning inconsistency:<\/strong> DBCC will notify you if the master database is not well.<\/li>\n<\/ol>\n<p><strong>Reasons<\/strong><\/p>\n<p>There are many reasons that can damage your master database file in SQL Server Database.<\/p>\n<ul>\n<li>One of the main causes of database corruption is an unstable power connection. Thus, it makes the Server boot again. Though, the Server fails to start after reboot as the database has become corrupt.<\/li>\n<li>The malware attack can also be the reason behind this situation.<\/li>\n<\/ul>\n<p>If there is corruption in your master database, then you have to either retrieve it from the backup or rebuild the database. Since rebuilding is a lengthy and complex process, it\u2019s better to restore the SQL master database.<\/p>\n<p><strong>Note:<\/strong> It is good to have the backup of a complete database no matter which method you adopt to repair master database in SQL Server.<\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Fix_Master_Database_Corruption_in_SQL_Server\"><\/span>Fix Master Database Corruption in SQL Server<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Follow the below methods to fix the Master Database in MS SQL Server.<\/p>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Method_1_Fix_Corruption_From_Backup_File\"><\/span>Method 1: Fix Corruption From Backup File<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>If you have a backup of your database, then you can easily retrieve the data from it. Just make sure that the backup database should belong to the same version of SQL Server as the corrupt database. Follow the below steps.<\/p>\n<ol>\n<li>First of all, retrieve the database backup of another instance.<\/li>\n<li>Then, go to the<strong> Database<\/strong> section of the Database dialog box. You have to use an alternate name like recover_master for the databases. Doing this will help to avoid any type of conflict regarding the database name.<\/li>\n<li>Users can rename the MDF file as <strong>mdf<\/strong> and the LDF file as <strong>recover_master_1.ldf<\/strong>.<\/li>\n<li>After that, detach the new database called<strong> recover_master<\/strong>.<\/li>\n<li>Now, open the file system to copy the database files recover_master.mdf and recover_master_1.ldf to the corrupt database instance.<\/li>\n<li>You are required to delete the damaged MDF and LDF files. Then,<strong> Rename <\/strong>the backup files (recover_master.mdf and recover_master_1.ldf) as <strong>mdf and mastlog.ldf<\/strong>.<\/li>\n<li>Finally, start SQL Server again and see if it works or not.<\/li>\n<\/ol>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Method_2_Remove_Corruption_by_Rebuilding_Database\"><\/span>Method 2: Remove Corruption by Rebuilding Database<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>If you do not have the master database backup, then you will not be able to retrieve that. In that situation, you have to rebuild the SQL system database using the below command.<\/p>\n<p><strong>Setup.exe \/ACTION=REBUILDDATABASE \/&#8230;<\/strong><\/p>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Method_3_Use_Automated_Tool\"><\/span>Method 3: Use Automated Tool<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The above-mentioned methods do not guarantee to repair master database in SQL Server and might result in data loss. So, the most proficient technique to repair the SQL Server master database is using the <strong>SQL Database Recovery<\/strong> tool. This software is highly capable of repairing the SQL database with great ease. It also repairs corrupt MDF and NDF files of the SQL Server database. It also enables users to <a href=\"https:\/\/www.sysinfotools.com\/blog\/fix-sql-error-1067\/\"><strong>solve SQL error 1067<\/strong><\/a>. The tool offers multiple features to the users and it is suggested you must try the free demo version of this software.<\/p>\n<h4 class=\"wp-block-heading\">Steps to Repair Master Database in SQL through an Automated Tool<\/h4>\n<ol>\n<li>Download and Launch MS SQL Database Recovery Tool.<\/li>\n<li>Add the MDF or NDF file of the SQL Server that has to be repaired.<\/li>\n<li>Choose the mode of recovery depending on the corruption.<\/li>\n<li>Then the software will scan the master database file and preview each and every item.<\/li>\n<li>Click on the save button and defined the location where you want to save the repaired SQL File.<\/li>\n<\/ol>\n<p>Then try running MS SQL again and you won&#8217;t face any issues while accessing the master database file of the MS SQL Server.<\/p>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>This blog describes the methods to repair the master database in MS SQL Server. As manual techniques can result in data loss so you must take the help of an automated tool. Hope it helps to resolve your query and you can easily fix the master database corruption issue.<\/p>\n<p><strong>Read Also:<\/strong> <a href=\"https:\/\/www.sysinfotools.com\/blog\/restore-sql-database-with-a-different-name\/\">Restore SQL Database with a Different Name<\/a><\/p>\n\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-left kksr-valign-bottom\"\n    data-payload='{&quot;align&quot;:&quot;left&quot;,&quot;id&quot;:&quot;865&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;bottom&quot;,&quot;ignore&quot;:&quot;&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;class&quot;:&quot;&quot;,&quot;count&quot;:&quot;7&quot;,&quot;legendonly&quot;:&quot;&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;5&quot;,&quot;starsonly&quot;:&quot;&quot;,&quot;best&quot;:&quot;5&quot;,&quot;gap&quot;:&quot;5&quot;,&quot;greet&quot;:&quot;Rate this post&quot;,&quot;legend&quot;:&quot;5\\\/5 - (7 votes)&quot;,&quot;size&quot;:&quot;24&quot;,&quot;title&quot;:&quot;How to Repair Master Database in MS SQL Server?&quot;,&quot;width&quot;:&quot;142.5&quot;,&quot;_legend&quot;:&quot;{score}\\\/{best} - ({count} {votes})&quot;,&quot;font_factor&quot;:&quot;1.25&quot;}'>\n            \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; 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height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 19.2px;\">\n            5\/5 - (7 votes)    <\/div>\n    <\/div>\n","protected":false},"excerpt":{"rendered":"<p>Summary:- The Master Database in MS SQL stores all the information about the pointers, users, and login credentials of the<a class=\"read-more ml-1 main-read-more\" href=\"https:\/\/www.sysinfotools.com\/blog\/repair-master-database-sql-server\/\">Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":7581,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[532],"tags":[],"class_list":["post-865","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-file-recovery-repair"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Rebuild and Repair Master Database of MS SQL Server<\/title>\n<meta name=\"description\" content=\"To repair master database of SQL Server you need to rebuild the database or use a database backup file to remove corruption.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.sysinfotools.com\/blog\/repair-master-database-sql-server\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Rebuild and Repair Master Database of MS SQL Server\" \/>\n<meta property=\"og:description\" content=\"To repair master database of SQL Server you need to rebuild the database or use a database backup file to remove corruption.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.sysinfotools.com\/blog\/repair-master-database-sql-server\/\" \/>\n<meta property=\"og:site_name\" content=\"SysinfoTools Tech Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/sysinfotools\" \/>\n<meta property=\"article:published_time\" content=\"2014-04-09T12:57:43+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-12-09T09:12:42+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.sysinfotools.com\/blog\/wp-content\/uploads\/2014\/04\/How-to-Repair-Master-Database-in-MS-SQL-Server.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"698\" \/>\n\t<meta property=\"og:image:height\" content=\"400\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Simran Bhatia\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Simran Bhatia\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.sysinfotools.com\/blog\/repair-master-database-sql-server\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.sysinfotools.com\/blog\/repair-master-database-sql-server\/\"},\"author\":{\"name\":\"Simran Bhatia\",\"@id\":\"https:\/\/www.sysinfotools.com\/blog\/#\/schema\/person\/0bc86a610ba204e43dcf67ac0c4f422a\"},\"headline\":\"How to Repair Master Database in MS SQL Server?\",\"datePublished\":\"2014-04-09T12:57:43+00:00\",\"dateModified\":\"2025-12-09T09:12:42+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.sysinfotools.com\/blog\/repair-master-database-sql-server\/\"},\"wordCount\":875,\"publisher\":{\"@id\":\"https:\/\/www.sysinfotools.com\/blog\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.sysinfotools.com\/blog\/repair-master-database-sql-server\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.sysinfotools.com\/blog\/wp-content\/uploads\/2014\/04\/How-to-Repair-Master-Database-in-MS-SQL-Server.jpg\",\"articleSection\":[\"File Recovery &amp; 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