So if your Sage 50 suddenly won't open after installing the latest Windows 10 updates, the fix is simple. Right-click on the Sage 50 shortcut on your desktop and choose Properties Sage 50 and Windows 10. Go to the Compatability tab and clear the check box next to “Run this program in compatibility mode for“. Click OK to save the change.
Source: Sage Bank Card Error and Decline Codes
In the search box on the taskbar, type the name of the program or app you want to troubleshoot. Most Windows 10 PCs will be able to upgrade to Windows 11. All 32-bit or 64-bit variants of Microsoft Windows operating systems: Windows 11 (except Windows 11S) Windows 10 (except Windows 10S), build 1709 or later. Windows 8.1. For the PC to be able to upgrade to Windows 11, it must meet the minimum hardware specifications and specific hardware is required for some features. Sage 50 and Windows 10, Sage 50 Not Starting after Windows 10 Update.