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Sage Cannot Open Activation Key File

Sage Cannot Open Activation Key File

Well, today we are going to discuss the Sage 50 software. Before we discuss the Sage error, we should get to know about the amazing software. Nowadays it has become the most preferable choice for entrepreneurs. It not only manages your accounting department but is also beneficial for managing manufacturing, HR, accounts, and Payroll areas. It is counted as one of the top-ranked software in the accounting market.  

Well, it is a technical software, and each technology comes with an error, so while using Sage there may be a chance of occurrence of multiple errors on your system. It would be a hard situation for you, as you may not be able to complete your task due to this error. The error should be fixed with minimum time. For your assistance, we are explaining here the cause and resolution of this error.

One of the most important points is that you can contact our Sage 50 Experts Team at any time. Another issue like sage update problems might also occur during the process.

Quick Overview of Sage Cannot Open Activation Key File

Error Code:Cannot Open Activation Key FileDeveloper:Sage Group
Error Description:Cannot Open Activation Key FileSoftware:Sage 50
Symptoms:Corrupted and missing Active.pvcApplies to:Windows 10 and 11
Cause:Insufficient permissions and damaged company file.Solution:Rename certain files in the Datapath

Causes of The Error of Sage Cannot Open Activation Key File

The cause for Sage Cannot Open Key File is that the Pervasive might have gotten damaged or even some files were damaged.

Read more in detail below:

  • Insufficient permissions and damaged company file.
  • Corrupted and missing Active.pvc
  • Insufficient drive space
  • Due to attacks of malware and viruses on your system.

Solution of The Error of Sage Cannot Open Activation Key File

To fix Sage Cannot open key file error rename certain files in the datapath, shut down Sage 50 accounting US- Edition.

To know more read below in detail:

1. Solution for Sage 100 ERP

A. First Step:

  • This error occurred due to insufficient network permissions to launch the Sage 100 ERP standard.
  • Go to Window Explorer and type \Mas90\Home\Lib\Keys.
  • Full control or change permissions at SharePoint.

B. Second Step:

  • With a backup copy try replacing it.
  • Before performing this task rename the file name.

C. Third Step:

  • Sometimes this error arises due to restoration from CD-ROM backup. You need to rename the Read-only and write attributes from all Sage 100 ERP files.
  • Open a command prompt go to the \MA S90 folder and write the following command to remove System, Read Only, and Hidden.

2. Solution for Sage 100 Premium and Advanced

  • Right selects the Sage 100 ERP Advanced and click on Premium to a folder
  • If you want more information, you can see the Microsoft article.
  • Install Premium and Sage 100 ERP Advanced.
  • A premium shortcut icon in XP Compatibility and Sage 100 ERP Advanced runs on your system.
  • Select the Compatibility tab and click on the Run this program in Compatibility Mode check box.
  • You will get dropped down the list and here you need to click on Windows XP and click on Show setting for all users.
  • Select Apply and click on OK.
  • Disable User Account Control (UAC) in Windows.

Solution 3: Disable User Account Control in Windows

Disable User Account Control Settings in Windows

If the authentication process is frequently hampered by UAC settings in Windows, you can disable them temporarily or permanently. However, you must first conduct a test by momentarily turning off the UAC.

Steps to disable user account control settings to fix Sage Cannot Open Activation Key File:

  1. Go to the Start menu and search for UAC.
  2. Click on Change User Account Control settings.
  3. Choose the option Never notify by using the slider, then choose OK.
  4. When prompted with “Do you want to allow this app to make changes to your device?”, click on Yes.
  5. Restart your system so that the new settings can take effect.

If you suspect that the user account itself is damaged, then you can create a new user account in Windows so that you can start fresh with Sage 100 and verify the error.

Steps to create a new user account in Windows:

  • Go to the Start menu, then choose Settings.
  • Click on Accounts.
  • Choose Family & Other users.
  • Click on Add other users.
  • Choose Add account.
  • Click on “I don’t have this person’s sign-in information”.
  • Click on Add a user without a Microsoft account.
  • Input the username and password for the new user account.
  • Launch Sage 100 in the new user account and sign in to the service once again to verify that you’ve fixed problems with opening the Sage 100 Activation Key File.

After creating a new user account (preferably an admin account), you can install the latest Windows updates.

Steps to update Windows to fix Sage Cannot Open Activation Key File:

  • Go to the Start menu.
  • Choose Settings.
  • Click on Windows Updates.
  • Select Check for Updates.
  • Click on Install Updates.
  • Restart your system once Windows has downloaded and installed the updates.

Sage 100Cloud – Error Cannot Open Activation Key File

User Account Control (UAC) may be blocking your access.

Note: For more information on user account setup, see or Microsoft email 709691 (user account setup step-by-step guide).

  • Install Sage 100 in any other folder except the “C:\Program Files” folder.
  • Use Sage Sage 100 Advanced/Short Icon to run in compatibility mode.
  • Right-click on the Sage 100 Advanced/Premium shortcut icon and then click on Properties.
  • After that click on the Compatibility tab.
  • Then you have to run this program on compatibility mode for the compatibility box in the compatibility mode section.
  • Select the Windows XP (Service Pack) option in the drop-down list.
  • To run this program, select the Run as an elevated check box in the Privilege Level section.
  • For multiple-user systems, you must click Show settings for all users, and after that, you have to select and confirm the check box similar to steps 4 and 5.
  • After that click on Apply, and then click on OK.
  • Disable UAC (User Account Control) in your Windows.

Speak to a Specialist about Your Sage Software

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