this link in update when tool start https://justdecompile.telerik.com/AutoUpdatesService/UpdatesService.svc -> ceritficate error
view image attachment
Hi Nguyen,
You can disregard the error and continue to the application. Once the application is opened, go to Tools > Settings > General Settings and use Disable automatic check for updates to disable the update feature.
Regards, Nick Iliev Progress Telerik
Love the Telerik and Kendo UI products and believe more people should try them? Invite a fellow developer to become a Progress customer and each of you can get a $50 Amazon gift voucher.