Solved: Metro Apps stopped working_this action or event has been blocked by disabled -优快云博客

本文介绍了一种解决Windows 8.1上Metro应用无法访问本地设置文件的问题的方法。通过调整AppData中Packages文件夹的权限设置，允许所有应用包访问其所需的文件。

I noticed this recently when I disconnected my Microsoft account from a Windows 8.1 machine. With the help of VS2013 debugger, I found that it was caused by a file permission issue, the metro app cannot access its local settings file (which is located: C:\Users\<username>\AppData\Local\Packages\<appfolder>\Settings\Settings.dat), and also several other files under its app folder.
Solution is pretty straightforward:
1. Open explorer and navigate to C:\Users\<username>\AppData\Local\
2. Right click on "Packages" folder, select property, then security tab.
3. On security page, click Edit which brings us to "Permissions for Packages" dialog, click "Add..."
4. On "Select User, Computers, Service Account, or Groups" dialog, click Advanced...
5. Change "Locations" to your local PC (in case you are in a domain), then OK.
6. Now we back to "Select User, Computers, Service Account, or Groups" dialog, and click "Find Now". You should notice an item named "ALL APPLICATION PACKAGES", ensure it is selected, then click "OK", back to "Select Users or Groups" dialog.
7. Now keep clicking "OK" to dismiss all dialog.
8. Try to launch Metro App again, it should work now.