Hello brian waweru 

Please install the digital signature or certificate by browsing the Pastel disc to D:\Products\Partner.

Right-click the Partner.cab file mentioned in the error and click on Properties.

Click on Digital Signatures, and double-click on only available signatures from the list.

Click on View Certificate to open the second screen, and click on Install Certificate.

If the certificate fails to install, change the User Account Control security setting to “Never Notify” by following the steps in this link: Changing User Account Control Settings

If you still have a problem, you can copy the Pervasive and Products folders from the disc to the desktop and run the installation from the desktop.

You need to install Pervasive first by opening the folder Pervasive and then Workgroup for Windows, double click on the setup.exe file to start the installation.

Once you have installed Pervasive, you can try installing Pastel again.

If the error persists, try to install Pastel through Silent Mode as per the instructions in the article below:

Installing Silent Mode

If this does help: Please click on Verify answer.

Jan