If you need to reinstall Sierra, first uninstall the application from the Control Panel > Apps & Features. Then make sure you delete all of the contents within the Sierra Desktop app folder on your computer. Reboot the machine, then reinstall the program using the links above.
A quick way to tell the Windows platform for the computer you are installing software on (for PCs), is to click the Window button on the keyboard (or just start typing in the window near the Start button), and enter the word "system." Select the option that says only System (not System Information, etc.). A dialog box from the Control Panel should appear with the operating system type information.
Best practices for troubleshooting Sierra client
I try and click the link to get the Sierra Desktop app file above but I receive this error: "Unable to open http://countcat.mcfls.... Cannot Download the information you Requested."
This may happen when you try and open a link from within a Microsoft Office program. It may be that it wants to use The Edge or Internet Explorer (web browser). To fix this, the easiest thing is to try and directly plug it into another web browser's address box. If that still doesn't work, follow the steps found here under 'adding the internet subkey to the registry and setting the value data.'
Staff may want to empty the Jarcache.
Staff may want to allocate more memory to the Java client to resolve problems with the application when running large, memory-intensive activities such as the fund activity report, working in and finishing large invoices, performing fund changes in fiscal close, global update, running large create lists searches. Set the maximum heap size to a higher value should hopefully allow the client to run without slowing it down. Make this change on any affected workstation.