Mac App Store Download Stuck. So make sure to avert the process when it’s in the initial stage. If when your system hangs when you're installing updates from the mac app store, there are a couple of things you can do to fix it.
One of the possible fixes for a stuck download is to simply cancel it. Open the app store app from the dock, launch pad, or using spotlight search. Download & install the combo update.
If the installation get stuck when you try to update the mac from mac app store, you may download macos software from apple website, which is the combo updater which includes all the files required to update the macos.
If you see a bank app store screen or your app store app simply freezes or experiences interim crashing on macos catalina, check the following tips out. If you now have an old android device with outdated software updates, then you can perform some actions to fix the problem. Start by navigating to the mac app store. Apple may provide or recommend responses as a possible solution based on the information provided;