How to Fix SQL Server Error 5 Access Denied in Operating System?

Do you also have the SQL Server error 5 access denied code in your database? If yes, then this is the right blog to get all your answers. The most common cause for this is the corruption of the database or backup file, along with an insufficient permissions issue. Here, users will get to know about these causes, the errors & challenges, along with the best six methods possible. In a nutshell, users can fix this operating system error code 5 Access is denied, without any difficulties.

Operating System Error 5(Access Is Denied.) SQL Server Error Explained

This error may arise anytime during the regular operations of users. However, the most common time it is observed is when users often execute queries like restoring or creating a backup file, or even accessing/creating the database as well. The system displays the message like this:

Msg 5120, Level 16, State 101, Line 1
Unable to open the physical file “R:\productions\sg_database.mdf”. Operating system error 5: “5(Access is denied.)”.
Msg 1802, Level 16, State 7, Line 1
CREATE DATABASE failed. Some file names listed could not be created. Check related errors. 

Here is a clearer explanation of what the error is about and how it occurs. The SQL Server error 5 access denied error often occurs when the SQL Server service account lacks important permissions to access the required files or folders. These files might be crucial for operations like attach or detach database in SQL Server, or running SQL Server Agent Jobs. We will now take a look at the common causes that might lead to this error in a SQL Server database. 

Also Read: MSSQL Server Error 5120 Access Denied – Resolved

Major Causes of OS Access Denied SQL Server Error 5

Although we explained the reason for this error above, let’s have a look at the most common causes below. This can help users get a clear understanding of the entire error code 5.

• Faulty Path – The faulty or incorrect path of the backup file often causes this error in the database for users.
• Admin Permission – Not having admin permissions or issues with them can also result in the same.
• Permission Issues – Lack of permissions to read or write the backup file is also a major cause of getting SQL Server error code 5
• Wrong Backup File – An incorrect backup file in use is a very silly but common reason for users to get this SQL Server error 5 access denied.
• Incompatible Format – Sometimes, the format of the backup file is not compatible, which raises issues. Thus, it should be in .bak format.
• Database Corruption – Primary or secondary databases, like MDF or NDF files, are one major cause for users to get this error 5 in the SQL DB.

Top 6 Methods to Fix SQL Server Error 5 Access Denied

Now, we will explore the top six methods that can help users simply fix this operating system error code 5 access is denied error:

• Database Engine Permissions
• Correcting Folder or File Path
• Allowing All Other Permissions
• SQL Server Management Studio
• (.bak) Backup File Repair Method
• MDF/NDF Data File Repair Method

All of these solutions can help fix the above-mentioned causes. Either users need to opt for only one solution or more than one based on existing issues.

Method 1. Fixing Database Engine Permissions Issues

Users must understand that they have a service account under which their SQL Server services run. Now, that account must have enough permissions to read or write files in the directories where the database is stored.

Now, if the permissions are restricted, users will face difficulties to read/write, attach/detach, DB, which ends with SQL Server error 5 in the DB. Users must verify if their SQL Server account has the required permissions or not. If not, they can simply copy and run the command mentioned below:

SELECT servicename, service_account
FROM sys.dm_server_services;

Add the Administrators group to the security permissions for the data directories once users are aware of the Service account name.

Method 2. Correcting the Required Folder and File Path

In case users have issues with the backup file path & folder, they will get the operating system error 5(access is denied) in SQL Server DB. Therefore, users need to correct the faulty folder and file path with utmost accuracy. Also, users who use the T-SQL commands to restore the backup file should be careful. This is why the path of the file should be correct and valid. Then they can simply eliminate the SQL Server error 5 access denied error reason with the right path.

Method 3. Allow Required Permissions from Properties

Lacking permissions always create issues in operations due to too many restrictions. Therefore. Users can simply follow the steps below to enable permissions:

Step 1. Go to the Production Folder > Right-click> Click on the Properties option.

Step 2. Check if all the required permissions are given to the user trying to access.

Step 3. Click Edit if not enabled, and click Add to create a new user if required.

Step 4. Use Object Names here & use the Check Names to verify as well.

Step 5.  Hit the Advanced button to simply search for the user’s name & proceed with repairing SQL Server Error 5.

Step 6. Adjust Settings and configurations as per your preferences.

Step 7. After adding, simply check the “Modify” permission > Click OK.

Note: Use Admin account to grant permissions if you don’t have enough permissions to do so to resolve the operating system error 5(access is denied.) error.

Method 4. SSMS for Availing Admin Account Privileges

Users must understand that sometimes the issue can be that they are not using the admin account. Therefore, if users access SQL Server Management Studio (SSMS) using the admin credentials, they are most likely not to face this MS SQL Server error 5 access denied. Simply right-click on the SSMS icon and click on Run as Administrator

Method 5. Repairing the Backup (BAK) File Corruption

In case users have a corrupted backup file of the SQL Server on their system, they just simply need to fix it. Moreover, due to the complications involved in the manual methods, it’s better to opt for the automated SQL Backup Recovery Tool.

This advanced utility can easily recover or even repair the damaged data from a .bak file to fix the SQL Server Error 5 Access Denied error. In addition, there are plenty of other features present here that can help user get their desired results without any hassles at all.

Method 6. Fixing the Corruption Issues in MDF/NDF Files

One of the approaches to repair corruption in a SQL database is using DBCC CHECKDB. This command is widely used by database administrators but has a certain limitation. This method often risks database security, as the REPAIR_ALLOW_DATA_LOSS command can result in complete and permanent data loss. Below is the command that can help users with resolving the error more efficiently. We will first take a look at this method, and next, a dedicated solution that can help overcome the limitations of the specified method. 

DBCC CHECKDB

    [ ( database_name | database_id | 0
        [ , NOINDEX
        | , { REPAIR_ALLOW_DATA_LOSS | REPAIR_FAST | REPAIR_REBUILD } ]

    ) ]
    [ WITH

        {

            [ ALL_ERRORMSGS ]
            [ , EXTENDED_LOGICAL_CHECKS ]
            [ , NO_INFOMSGS ]
            [ , TABLOCK ]
            [ , ESTIMATEONLY ]
            [ , { PHYSICAL_ONLY | DATA_PURITY } ]
            [ , MAXDOP = number_of_processors ]
        }
    ]
] 

Now, in case SQL Server Error 5 has occurred due to damaged MDF or NDF files on the server, the manual solution can sometimes worsen it because of complete data loss. In such cases, users can opt for a dedicated solution like SysTools SQL Recovery Tool, which is way better than manual methods. This solution helps users resolve the error in a much more precise and secure way. Furthermore, it helps users to access the database again in case the error resulted in database inaccessibility. 

Download the tool for free and follow the steps below:

1. Install and run the tool, and click the Open button.
   
   
2. Select Quick or Advance Scan depending on the corruption severity in the database.
   
   
3. Choose a destination and add authentication details to proceed to repair SQL Server error 5.
   
   
4. Click on the Export button to fix error code 5 in SQL Server.
   
   

How to Prevent SQL Server Error 5 From Occurring?

There are a few ways by which users can prevent this operating system error 5(access is denied.) error. Look at these points to protect the database and stay away from SQL Server error code 5 issues.

1. Temporarily disable Antivirus & Firewalls to rule them out from creating hindrance.
2. Disabling User Account Control (UAC) temporarily is another good option.
3. Also, keep an eye on the fact that the file is hidden and Not Visible to users.
4. Ensure the database log directories have the folder permissions after database transfer or migration. 
5. It’s efficient to use SSCM (SQL Server Configuration Manager) to change service accounts for updating permissions. 
6. Avoid using a restricted user profile in Desktop or Documents to store SQL backups or data.
7. Audit the permission changes on SQL Server after installation. 

Conclusion

Finally, we are here to end this article after learning SQL Server error 5 access denied solution with the top 6 methods. If users find any difficulties in understanding these solutions or need any assistance, they can connect with us for better solutions and in-depth services for operating system error 5(access is denied.) SQL Server solution.

Also Read: SQL Server Error 3201 Access Denied to Open Backup/Restore HeaderOnly