Sage Cannot Open Activation Key File

Sage 50 Cannot Open Activation Key File

Sage 50 provides an easy and user-friendly interface to address the regular accounting needs of businesses and professionals. However, many of its users have reported that they have received the “Sage Cannot Open Activation Key File“ error message of late, while starting the Sage software. If you are one of them and are looking for feasible remedies, this blog can help you a great deal. Here, we will look ateRWqU2tIsYkCod ENblnDoT7oEFhafZPEhcAZnkUJLEN1aBcDjbmhF0fBjmoeMYx5 ytYNq SsUOX KUqhQt4FRyUrV8nZbr21AbBm64gjnvvJCOR44Jv23O YJggpfEmj mM7FwStwTZ2PruA some simple methods to resolve this commonly reported issue.

But, before proceeding to the troubleshooting part, let’s first get to know why this issue occurs in your system in the first place.

Causes of Sage Cannot Open Activation Key File Issue?

Many technical issues often lead to the occurrence of this issue. Here we are listing some of them –

  • Missing/corrupt activate.pvx file in “..\MAS90\Home\Lib\Keys” on the server 
  • The user may be having insufficient network permissions
  • Insufficient drive space

How to Fix Sage Cannot Open Activation Key File Error

Here are some simple methods to resolve this error –

Total Time: 30 minutes

Check if you have Insufficient Permissions

🔹 Open the WindowsImage of Windows icon png explorer
🔹 Browse to “..\MAS90\Home\Lib\Keys“.
🔹 Try creating and deleting a text file in this folder.
🔹 If you are getting an access error, it means you do not have the sufficient privilege
🔹 To have sufficient rights, Right click on the Sage shortcut on your desktop and choose Run As Administrator
🔹 Open Windows explorer
🔹 Browse to the “..\MAS90 folder 
🔹 Change the permission for this folder to ‘Full Control’ at the Sharepoint

If the activate.pvx File is Corrupt or Missing

🔹 Log in to the server with admin rights
🔹 Open Windows explorer
🔹 Browse to the “..\MAS90\Home\Lib\Keys” folder
🔹 If you can locate the activate.pvx file in this folder, try to replace it with a backup copy
🔹 If you find it renamed (such as MIGRATE_ACTIVATE.PVX), try renaming it back to activate.pvx
🔹 Try to open the Sage software and check if you are still getting the error
🔹 If the error still persists, the activate.pvx is read-only. This may occur if you have restored the Sage backup from a CD-ROM. In this case, you will need to remove the “Read-Only” attributes from all Sage files
🔹 Open the command prompt
🔹 Browse to the “..\MAS90” folder
🔹 Type the ATTRIB -r -s -h /s command to remove the “Read-Only”, “Hidden” and “System” attributes from the ..\MAS90 folder and all its subfolders

If the Path to “..\MAS90” is Incorrectly Mapped

🔹 Log in to the server
🔹 Remove the share from the “..\MAS90” directory
🔹 Now share the drive above ..\MAS90\.
🔹 Go to the workstation and map the drive again to point it to the new share point,
🔹 Run the Workstation Setup (Wksetup.exe or..\MAS90\Wksetup\Setup.exe).

If the Sage Program is Infected by a Virus

🔹 Rename the “..\MAS90\CM” and “..\MAS90\Home” directories.
🔹 Reinstall the System Setup module
🔹 Also reinstall the Library Master and Custom Office modules, if installed 
🔹 Go to Product Registration and Reactivate the system. You are not required to reenter the unlocking keys and serial numbers.
🔹 To retain the configuration settings, copy all the *.ini files from the original “..\MAS90\Home” directory to the newly created “..\MAS90\Home” directory.

We hope the steps shown above would help you resolve the Sage Cannot Open Activation Key File issue. If you are still troubled by this issue, or, if you are finding it difficult to perform these steps, we would recommend you consult with some authorized Sage experts.

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