Noticed a bunch of your Microsoft Store apps update over the past few days? Well, it’s not a sudden onslaught of new features. Instead, Microsoft is addressing an issue within the app store. It’s caused users to run into error 0x800B0100 when they try to download apps. Palani Sundaramurthy, principal program manager lead on Developer & Partner Services at Microsoft, expounds, “We have tracked this issue to our submission workflow incorrectly signing certain apps. [We need] to re-process the impacted apps in order to alleviate the problem. While we have already re-processed a few apps, […] we’re working to ensure that every impacted app is fixed.”
These reprocessed apps are showing up as app updates and come with the minor version number of .1000. It seems to have fixed the problem and Microsoft says developers can now safely resubmit apps and have end users download these fixed versions.
Source: MSPowerUser