I downloaded and installed postman clinet in win10. But it can not be started up. I never encounter anything like this. Like any installed software tt supposed to be able to start up right away.
Welcome to the community
This appears to be a common confusion lately, if you are trying Postman on the Web - take a look at this screen-record for reference.
I downdloaded Postman Desktop Agent: Windows 64bit in https://www.postman.com/downloads/.
I just want to use the software to try and test out Jason API.
Please Note: There is no major difference between Postman and Postman Canary, the only difference is that the Canary version gets all the newest releases/updates. This allows you to test all the features in the application as soon as they are built and released in Postman Canary. Both the versions would help you test the APIs the same way.
Postman canary works! Thank you! Postman should remove Postman Agent that really wastes a lot of people’s time.
Glad to know that Canary helped
Since a fresh install helped here, clearing cache as in this doc here for the Postman prod application should also work