How to Fix Sage 50 Error 1721

Sage 50 error 1721

Sage 50 software was basically created for the small and medium business. It is built with such features that it will handle all business operations smoothly. It provides with the best professional services, this accounting software have become quiet desirable for the modern business management as it helps its clients to gain more and more profit. The Sage 50 software is one of the best accounting software provides a businessman to access to their work anywhere in the world.

Sage wants its clients to be well equipped so it is always ready to create and improvise with its software. There are times when even Sage accounting software encounters an error. But sometimes due to some issues, a user is unable to access the Sage 50 software. So in that case you just have to report about it to the Sage Customer Service and they will take care of your problem. The Sage 50 technical support number , where all the sage errors will be resolved.

What is Sage 50 Error 1721

The Sage 50 Error 1721 occurs due to the fact that the user is installing or uninstalling the Sage 50 software into the operating software. So to solve this problem you will just have to get in touch with the sage 50 technical support by dialing its customer service number.  You can basically see Error 1721 on your screen.

Error 1721: “There is a problem with this Windows Installer package. A program required for this install to complete could not be run. Contact your support personnel or package vendor”.

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Cause of Sage 50 Error 1721

The main cause of the occurrence of this error is that:

  • Register/Unregister Windows installer
  • Occurrence of corrupt files in the in windows installer
  • Improper registry cleaning
  • New version of windows installer

Support: Just because this is not a sage problem does not mean we are not there for you. You just have to dial the Sage customer support for the assistance. Sage expert will assist you with your problem.

Related article: How to Resolve Sage 50 Error 1706

Resolution for Sage Error 1721

When this particular error appears, it means this is due to installing or uninstalling software on the operating system. This is basically a Microsoft error which is related to the Windows Installation Engine. The person has to make sure that they have an updated or the complete version of the windows installer.  To check the version of Windows Installer, go to

  • C:\WINDOWS\system32, right click on “exe” – Properties – Version.

If a person is working on windows XP then you need to have Service Pack 2 or the higher versions. If this problem continues to occur even after the updated version of the windows installer, reboot the system. Go to the Start Menu, then Run, then type CMD so that you can open the command prompt, and then type the following commands:

  • msiexec /unregister
  • msiexec /regserver
  • After the installer has been re-registered, try to reinstall Simply Accounting.
  • As a last resort, you may need to modify the registry to delete any keys that related to Sage Simply Accounting installation.

Or, just follow these simple steps:

  • Reconnect the external device to your system where the Sage 50 program resides.
  • Uninstall the Sage 50 software from your system.
  • Re-install the Sage 50 software to the default program path of the windows operating system.
  • Validate the sage 50 program you have just installed.

Also Read: How to Fix Sage 50 Error 1311

Now, you can run your Sage 50 accounting software successfully. But, if the problem still persists; you just have to call the Sage support number . Our expert Sage technical expert will help you fix the error message so that you can work efficiently on your Sage accounting software.

Sage 50 Support


Sage support is one of the trustworthy tech support system who will help you throughout the Sage error you are facing. We provide our expertise to millions of the users worldwide. And we are proud to say that they are satisfied with our help. With years of experience and complete technical knowledge, our certified technical experts are quick in identifying the problems and will provide you with the best possible solution for your problem in minimum wait time possible. As understand the value of time you have.

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Our Team is available 24X7, 365 days a year and will be assisting you through your issues and we provide first call resolution to even the trickiest tech problems. We will help you install, update, and upgrade to the latest Sage Accounting software and can troubleshoot all error messages that are affecting the performance of your software.

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