A recent outcry from users of Windows 10 was observed in which they complained that an error (0x800b0100) was displayed while installing an application during update. The acknowledgement of this error in Microsoft Store Apps was made by Rudy Huyn, a Microsoft developer. He provided a temporary solution for users who were facing this issue to close Microsoft Store app and then run WSRESETexe. It is supposed to clean the local cache of Store and let the user download the app.
According to Borncity report, this error code which stood for TRUST-E-NOSIGNATURE (invalid or no signature) occurred more often while Store Apps were being installed under Windows 10. This problem was reported specifically with App Penbook and notebooks during installation and other devices did not face this issue. Several users continued to complain that apps that they had paid for were not installing. Without any further delay, Microsoft jumped to the users’ rescue and resolved this bug in their Store.
Microsoft developer Rudy Huyn in his tweet (below) confirmed that Microsoft Store apps were facing this error during their downloading process. According to him, this issue was due to a bug in Microsoft Store app, particularly due to incorrect signing of certain apps.
A lot of apps have been having this issue since Friday. If you can't download an app in the Store and receive the 0x800B0100 error code, it's a bug related to the #MicrosoftStore app, close it and run WSRESET.exe, it will clean the Store local cache and fix your issue.
— Rudy Huyn (@RudyHuyn) September 6, 2018
Two days later he posted that the software company had fixed this issue and had regenerated the Store Apps. He wrote, “UWP developers, if your application was not downloadable (……….), good news, first, you did nothing wrong, it was a bug related to the Store. Microsoft fixed the issue and automatically generated a new package of your app (ending with .1000 or .1070).”
Palani Sundaramurthy, Microsoft’s Principal Program Manager Lead on Developer & Partner Services also wrote about this issue: “We are sorry about this failure and are actively working on mitigating it. We have tracked this issue to our submission workflow. [We need] to re-process the impacted apps in order to alleviate the problem. While we’ve already re-processed a few apps, […] we’re working to ensure that every impacted app is fixed.”
Microsoft is now working on a permanent solution by re-signing all the affected apps and then putting them in the Store. This will help fix the application installation error being faced by users.