How to Fix Sage 50 Unable to Register Data Source Error

To Fix Sage 50 Unable to Register Data Source Error

After installing Sage 50 on your computer, at times you may run into an error message that says “Sage 50 Unable to register data source” or “Sage 50 Unable to register expression library”. Both these error messages primarily mean the same and cause issues when you try to run reports and crashes your Sage 50 accounting software, making it difficult for you to work on Sage 50.

In this blog, we will look at what this issue is and why users face it. We will also provide some useful methods by applying which, you can resolve the Sage 50 Unable to Register Data Source Error permanently. 

Let’s proceed then.

What is the Sage 50 Unable to Register Data Source Error is all about?

The Sage 50 users mostly encounter this error after installing Sage 50 on their computers. This issue mainly occurs when users try to run reports. As a result of this error, the Sage 50 accounting software crashes suddenly.

Read More : How to Fix Sage 50 Log Error

Causes of Sage 50 Unable to Register Data Source Error

Below are some of the reasons that may lead to “Unable to register datasource” error message on Sage 50:

  • Incorrect version of Sage accounting software
  • Damaged installation files
  • Incorrect regional settings on your computer
  • Problems due to Windows 10 Anniversary updates

Solution to Fix Sage 50 Unable to Register Data Source Error

Let’s take a look at each of these issues and ways to solve Sage 50 Unable to Register Data Source Error them manually :

Method 1: Incorrect Version of Sage 50 Accounting Software

  • The error message can occur if you have recently upgraded your computer’s operating system to Windows 8, but are still running the old version of Sage accounting software. To fix the issue, you need to upgrade your Sage 50 accounting software to the version that’s compatible with Windows 8, i.e., Sage 50 Accounts 2013(v19) and above. For this,
  • Go to Help and click on Program Details to make a note of the Program Directory.
  • Again go to Help and click Check for Updates.
  • Go to Full Program Update and click Download Now.
  • Click Install Now to start the installation process.
  • A window will appear prompting you to take a backup. Click Yes to continue or No if your data is already backed up.
  • Accept the terms and conditions by selecting the check box and click Next.
  • Check if the directory path matches the one noted in Step 1 and click upgrade.
  • If it doesn’t, click New Folder and enter the correct folder and click Next.
  • Now select the version you want to install and click Yes to begin the installation and Close once the process is complete.

Method 2: Damaged Installation Files

If you are using the supported version of Sage 50, the problem could be due to faulty or damaged installation files. This could mean that your Windows 8 or Windows 10 doesn’t have .NET 2.0 or .NET 3.5 installed as part of the operating system. To check and resolve the issue.

  • Go to Control Panel and click on Programs.
  • Click on Programs and Features.
  • Next, go to Turn Windows features on or off and select .NET 3.5 and press OK.
  • Download the required files when prompted.
  • Open Sage Accounts to check if the problem has been fixed.

Method 3: Incorrect Regional Settings on your Computer

The issue can also occur if the regional settings on your computer have been set incorrectly. To set your regional language options to English (United Kingdom),

  • Press Windows key + R.
  • Type ‘cpl’ and press OK.
  • The Regional and Language window will appear.
  • Go to Format tab and click Set Format to English (United Kingdom).
  • Click OK and now go to Location tab.
  • Set Current location to United Kingdom and press OK to apply changes.

Method 4: Problems due to Windows 10 Anniversary Updates

Sometimes, the error message also shows up after installing Microsoft’s Windows 10 Anniversary update. To fix the issue, you need to download and install Sage Accounts – Microsoft .Net Update. For this,

  • Go to
  • The file will automatically download or you’ll be prompted to open or save the file.
  • Click Save when prompted to save the file on your desktop.
  • Now double click the downloaded file.
  • Press any key when you see the message ‘Press any key to exit’.
  • Now restart your computer and open Sage Accounts to see if the issue has been resolved.

Also Read : How to Create or Register Sage ID

Final Words!

We are a trustworthy tech support company and have provided expert tech support to millions of customer worldwide. With years of experience, rigorous training, and complete technical know-how, our certified technicians are quick in identifying your problems and giving prompt solution in minimum wait time possible. Our technicians are available 24X7, 365 days a year and boast of providing first call resolution to even the trickiest tech problems.

Accounting Professionals & Specialized Experts

Want quick help from accounting software experts? Get in touch with our team members who can install, configure and configure your software for you. Proficient in fixing technical issues, they can help you quickly get back to work whenever you encounter an error in Sage software. Our team is available 24/7 365 days to assist you. To get in touch.

Frequently Asked Questions (FAQs)

I am getting the Sage 50 Unable to Register Data Source Error message after installing Microsoft’s Windows 10 Anniversary update. How to resolve this issue?

To fix this issue, you should download and install the Sage Accounts – Microsoft .Net Update. To do this, perform the steps below-
1. Visit
2. The file will get automatically downloaded. 
3. You may also get a prompt to open or save the file. In this case, click on the Save button and save the file to the desktop
4. Double click on the downloaded file
5. You will get a message ‘Press any key to exit’. Do accordingly
6. Restart your computer 
7. Open Sage Accounts and check if the issue is resolved.

What causes the ‘Sage 50 Cannot Connect to your Sage 50 Company Data Location’ Error on your System?

Although a number of reasons may lead to this issue Sage 50 cannot connect to Sage 50 Company Data Location error on your System, the primary ones are listed below-
1. Domain Name Service (DNS) resolution issues
2. The Mapped network drive may be empty
3. The Mapped network drive is disconnected
4. Wrong security settings on the host machine or server
5. Loss of connection to the host machine or server
6. The network drive is not mapped accurately
7. A Different version of the Sage software is installed on the workstation than what is installed on the host machine /server
8. The Data path folder may have got deleted/ moved

Related Posts

Further Reading