MaxLocksPerFile is a Microsoft Jet PC registry entry that is set to 9500 by default. Checking this parameter defaults to a calculation that references 139,000 selected entries in Microsoft Access.
The MaxLocksPerFile parameter specifies the maximum number of Microsoft Jet range locks for a file. The default value for MaxLocksPerFile is 9500.
3 minutes to read.
Applies to:
Access 2016, Access 2013
Symptoms
If one or more users are performing many transactions in a multi-user environment, some transactions may fail with the following error message:
Reason
An error occurs when the number of associated locks required to complete a transaction exceeds the maximum number of locks per file.
Workaround
Important! This section, method, or task contains simple steps that demonstrate how to modify the exact registry. However, serious problems can occur if you modify the registry incorrectly. Therefore, be sure to follow these steps carefully. To be on the safe side, back up your computer registry before modifying it. Then you can easily restore the registry if you run into problems. Additional informationFor information on starting the lumbar region and repairing the registry, see the article number below the short article in the Microsoft Knowledge Base:
322756 How to back up and restore the Windows registry on your Windows computer
To work around this issue, increase the maximum number of locks per computer file. To do this, use one of the following methods.
Method 1: Set The Registry To MaxLocksPerFile To Increase The Maximum Number Of Locks Per File
Click Start and then Run.
Enter regedit and click OK.
Find the following registry key based on your own installation of Access:
Install Windows Installer (MSI)
For a 32-bit version of Access that runs on a 32-bit version similar to Windows, or for a 64-bit version of Access that runs on a 64-bit version of Windows
How to increase MaxLocksPerFile registry entry in Access 2016?
In general, if this entry is not in your own Windows registry, I recommend that you go to HKEY_LOCAL_MACHINE Software, then click Edit> Find, type MaxLocksPerFile and press Enter to find this key online. MaxLocksPerFile> click Decimal> increase the maximum number of locks for each file.
HKEY_LOCAL_MACHINE SOFTWARE Microsoft Office Access Connectivity Engine Engines ACE
For 32-bit Access running on 64-bit Windows
Windows has a certain limit on the number of files that can be created at the same time. If this threshold is frequently exceeded, the failed share operation will no longer work and you will have to try playing again. There is a registry that monitors and manages this maximum file share limit, often referred to as the MaxLocksPerFile entry.
HKEY_LOCAL_MACHINE SOFTWARE Wow6432Node Microsoft Office Access Connectivity Engine Engins ACE
One-click installation
For 32-bit Access on 32-bit Windows or 64-bit Access on 64-bit Windows
How do I create a filesystem in Solaris 10?
HKEY_LOCAL_MACHINE SOFTWARE Microsoft Office ClickToRun REGISTRY MACHINE Software Microsoft Office Access Connectivity Engine Engins ACE
For 32-bit Access running on 64-bit Windows
HKEY_LOCAL_MACHINE SOFTWARE Microsoft Office ClickToRun REGISTRY MACHINE Software Wow6432Node Microsoft Office Access Connectivity Engine Engins ACE
Note
Placeholder corresponds to your version (16 office.0 corresponds to Office 2016, 2019, Office or Office 365, 15.0 = Office 2013).
The MaxLocksPerFile parameter specifies the maximum number of Microsoft Jet partial locks for a file. The default value for MaxLocksPerFile is 9500. However, do not change this value if you are running a Novell NetWare server, as the maximumThat is, the number of server raspberry records per connection is 10,000.
Double-click MaxLocksPerFile in the immediate area of the Registry Editor.
Select the Decimal option in one of our dialog boxes to change the DWORD values.
Modify the Popular Data Value field as needed, then click OK.
Please note that this method unfortunately modifies the registry setting for all applications that use Jet Microsoft Record Engine version 4.0.
Method 2: Use The SetOption Method To Temporarily Change The MaxLocksPerFile
PercentThe fcc SetOption will temporarily override the default thread count in the file. You set the default file lock phone number when you organize the MaxLocksPerFile registry key. You are setting a new value using the set method option. The new value is valid until the user closes the DBEngine object. To use Method 2, follow these steps from Microsoft:
Free access.
Open the production database, then press Alt + F11 to start the Visual Basic Editor.
In Microsoft Visual Basic – – [ (code)] select Open, Window Immediately from the View menu.
Fortect is the world's most popular and effective PC repair tool. It is trusted by millions of people to keep their systems running fast, smooth, and error-free. With its simple user interface and powerful scanning engine, Fortect quickly finds and fixes a broad range of Windows problems - from system instability and security issues to memory management and performance bottlenecks.
1. Download Fortect and install it on your computer
2. Launch the program and click "Scan"
3. Click "Repair" to fix any issues that are found
Immediately enter the following code in the Window:
DAO.DBEngine.SetOption dbmaxlocksperfile, 15000
Press my ENTER key to execute the code. This command temporarily sets the MaxLocksPerFile value to 15,000.
To handle large transactions, set the MaxLocksPerFile value as per your requirement, and then start the transactions in a live session.
Changes you make to MaxLocksPerFile based on the setting using the methodSetOption are only available for the current session.
Additional Information
The MaxLocksPerFile parameter specifies the maximum amount of extra hair that Microsoft Jet will place in the file. The default MaxLocksPerFile value is 9500. However, this value does not change if you are using a Novell NetWare server, since the maximum number of recording server locks per connection is 10,000.
If there is no Here entry in the Windows registry, go to HKEY_LOCAL_MACHINE Software, then click Edit> Find, type MaxLocksPerFile, press Enter to find this key. MaxLocksPerFile> click Decimal> increase the maximum number of loops per file.
Office 365 ProPlus has been renamed Microsoft Apps 365 for the enterprise. You can find other important information about this change in this article on the website .
Placeholder represents your associated version (16 office.0 = Office 2016, 2019, Office, or possibly Office 365, 15.0 = Office 2013).
The test code in this article uses Microsoft Data Objects to access it. To use this code correctly, you must reference the Microsoft DAO 3.6 Object Library. To do this, click Links in the Tools menu for the Visual Basic Editor type and make sure the Microsoft 3 dao.6 Object Check is normally checked.
