Regarding trusted certificate for UWP app signin.

Kirankumar Maharana 86

In my UWP project recently certificate is expired. Now I'm creating the certificate using the below reference link. But still, I'm facing the below
"> This app package is not signed with a trusted certificate. Contact your system administrator or the app developer to obtain a new certificate or app package with trusted certificates.
"

Please help me. How can I resolve this issue?

Reference link: https://learn.microsoft.com/en-us/windows/msix/package/create-certificate-package-signing

Nico Zhu (Shanghai Wicresoft Co,.Ltd.) 12,856 Reputation points

2021-08-03T06:12:35.287+00:00

Have you installed the new certificate in your machine ?
Kirankumar Maharana 86 Reputation points

2021-08-03T07:11:36.327+00:00

Yes It's Installed.
Nico Zhu (Shanghai Wicresoft Co,.Ltd.) 12,856 Reputation points

2021-08-03T07:15:44.907+00:00

Please try to install the certificate and the app package in the new machine for excluding current OS problem.
Kirankumar Maharana 86 Reputation points

2021-08-03T07:48:32.61+00:00

Thanks NicoZhu. Please confirm one point. If the old version application is in MicrosoftStore published. If a new certificate build push to the store then the app update is working right?
Nico Zhu (Shanghai Wicresoft Co,.Ltd.) 12,856 Reputation points

2021-08-03T08:30:06.013+00:00

Above comments apply for sideload way, for MicrosoftStore, and if your dev account is available, the store will manage the update package's certificate(keep same with previous version), it is not related to a local test certificate.
Kirankumar Maharana 86 Reputation points

2021-08-03T08:51:23.67+00:00

Are able to update the latest build in Microsoft Store after the certificate change?
Nico Zhu (Shanghai Wicresoft Co,.Ltd.) 12,856 Reputation points

2021-08-03T08:54:16.837+00:00

Sure, please make sure the update app was published to the same app's submission
Kirankumar Maharana 86 Reputation points

2021-08-03T08:57:48.207+00:00

Thank you so much NicoZhu.