Sage 50 Canada

Can someone tell me how to fix this. The problem may be I am still working on Windows 7. And advice would be very much appreciated. Thank you.

I have been using Simply and now Sage 50 Pro for about 15 years. I run three companies on this software. I subscribe to payroll services (required for one of the three companies) while the other two are we only use payables and receivables and the G/L…