Today I was checking "Metro" control panel and noticed that apps list in the notifications settings is empty (I have apps capable of showing toasts and they are listed properly in the lockscreen settings). Anyone had similar problem and know how to fix it?

I also have a strange problem with "Open in command prompt" command from Windows Explorer menu - it doesn't work only on one partition (nothing happens after clicking it, partition letter is D: if that helps). There is no problem with C or E. "Open command prompt as admin" works on every partition without any problem. All partitions have NTFS files system, C and E was formatted during Windows 8 installation, E wasn't touched since I installed Windows 7 last year. I tried running Chkdsk but it didn't find any problems.

Screenshot of blank apps list in notifications settings:

Hi,

For the App Notification List issue, I suggest you uninstall an App which explicitly has Notification setting(for instance, Calendar), then try installing it from Store again for a test. If the issue persists, I think your Apprepository is corrupted. I am afraid you need to reinstall Windows 8 or refresh it.

For the second issue, you need to check the key under HKEY_CLASSES_ROOT\Directory\shell\cmd\command, the value should be cmd.exe /s /k pushd "%V".

I was afraid that I would have to do reinstall or refresh Win8. I already reinstalled Calendar, Mail, etc. because of the bug that made Mail not see any contacts and the list is still empty.

I will check the solution for my second issue after I get home later today and will let you know if it worked.

Hi,

Also, I found that the Windows 8 does not have Open command prompt as admin context menu by default. Is this menu added afterwards?

Vaule in the key in the registry you wrote about is set properly so it's not the problem (I thought so because it wouldn't work on all partitions if the command was wrong while it doesn't work only on one out of three). And this command is not in the context menu, it's in file menu:

Hi,

OK, I think we could utilize Process Monitor to compare the action differences between the partition that can successfully do this job and the partition that cannot.

The Shell Key is under HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\CommandStore\shell\Windows.MultiVerb.cmd, please check as well. 

I think I have found the culprit - it's Cubby app (there was lots of explorer.exe events in Process Monitor with cubby.exe so I closed it to make the log more readable). After closing it "Open in command prompt" started working on D partition, when I launched Cubby it stopped again so this must be its fault.

Hi,

Thanks for your update. I marked your reply.

I think I've found out how to fix the blank applications list in the notifications settings on Windows 8. This occurs when an app that utilizes the notification feature did not upgrade/install properly. In my case it was the Engadget app. I recommend that you check the Windows store for all installed apps on your PC and then cross-checking with the apps on your start screen (some apps might have been unpinned from the start screen). If you found that 1 or more app/s is missing from your start screen but listed as "installed" in the app store then you'll have to reinstall the app/s somehow. All I did was to click on the app in the store and press the install button at the bottom of the screen. Then it began to install and the notification apps were there again after installation. Hope this helps.

Checked, and every app listed as "Installed" is shown on Start screen. I also checked using Get-AppxPackage PowerShell command and the result was similar (with exception some vclibs or something and WinJS packages.

I'm having this same problem too, and there's nothing listed as installed in the Store that isn't actually installed. 

Success!!! I have (without windows refresh/reinstall) completely fixed the first issue (missing applist in notify).

(I'd need a second instance to prove my fix though)

[quote]For the App Notification List issue, I suggest you uninstall an App which explicitly has Notification setting(for instance, Calendar), then try installing it from Store again for a test. If the issue persists, I think your Apprepository is corrupted. I am afraid you need to reinstall Windows 8 or refresh it. [/quote]

was actually a good hint. armed with the idea that there is an apprepository database, thus there is a reg entry.4

{BOILERPLATE WARNING: messing with your registry is dangerous if you don't know what your doing you could cause damage. . .don't be like me a delete willy-nilly, especially without having a computer backup}...that said since our other alternative is to refresh/reload windows what're you gonna lose ;)

Find the key HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\PushNotifications

export it (jic my fix is wrong)

delete it

reboot

(here I encountered a no-boot-blue-screen but maybe do to my antivirus though the windows bluescreen, event log and nirsoft bluescreenview all show a different cause. and after another reboot)

open settings go to notification and store now shows as the only app in the once blank applist

reinstall all your apps (most you can just install without uninstalling...any that "fail to install" uninstall first then install)

go to the effected applist it is now full (and lock screen properly shows notifies once you retell it which ones are to be used)

I encountered this error initially with a new computer, my second windows8 and both using a live account as a useraccount.  My assumptions for cause are the following (in this order of likelihood most-to-least)

That the profile carryover causes a miscalc in the app database

That the use of the "easy transfer" between 2 windows8 PCs over wifi causes a miscalc in the app database

An alpha (community provided and not built into the official program) ccleaner winapp2.ini rule cleaned a reference point (if the issue reoccurs I will investigate this further)

Finally (though this may change after a reboot) the exported (broken) regkey contained

"ToastEnabled"=dword:00000001
"LockScreenToastEnabled"=dword:00000001
"AudioEnabled"=dword:00000001
"ToastWakeupTime"=hex(b):96,90,5b,38,5c,0b,ce,01

but, thus far, these settings do not appear in the newly re-created key

Unfortunately it didn't do the trick for me. List is still empty.

Success!!! I have (without windows refresh/reinstall) completely fixed the first issue (missing applist in notify).

(I'd need a second instance to prove my fix though)

[quote]For the App Notification List issue, I suggest you uninstall an App which explicitly has Notification setting(for instance, Calendar), then try installing it from Store again for a test. If the issue persists, I think your Apprepository is corrupted. I am afraid you need to reinstall Windows 8 or refresh it. [/quote]

was actually a good hint. armed with the idea that there is an apprepository database, thus there is a reg entry.4

{BOILERPLATE WARNING: messing with your registry is dangerous if you don't know what your doing you could cause damage. . .don't be like me a delete willy-nilly, especially without having a computer backup}...that said since our other alternative is to refresh/reload windows what're you gonna lose ;)

Find the key HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\PushNotifications

export it (jic my fix is wrong)

delete it

reboot

(here I encountered a no-boot-blue-screen but maybe do to my antivirus though the windows bluescreen, event log and nirsoft bluescreenview all show a different cause. and after another reboot)

open settings go to notification and store now shows as the only app in the once blank applist

reinstall all your apps (most you can just install without uninstalling...any that "fail to install" uninstall first then install)

go to the effected applist it is now full (and lock screen properly shows notifies once you retell it which ones are to be used)

I encountered this error initially with a new computer, my second windows8 and both using a live account as a useraccount.  My assumptions for cause are the following (in this order of likelihood most-to-least)

That the profile carryover causes a miscalc in the app database

That the use of the "easy transfer" between 2 windows8 PCs over wifi causes a miscalc in the app database

An alpha (community provided and not built into the official program) ccleaner winapp2.ini rule cleaned a reference point (if the issue reoccurs I will investigate this further)

Finally (though this may change after a reboot) the exported (broken) regkey contained

"ToastEnabled"=dword:00000001
"LockScreenToastEnabled"=dword:00000001
"AudioEnabled"=dword:00000001
"ToastWakeupTime"=hex(b):96,90,5b,38,5c,0b,ce,01

but, thus far, these settings do not appear in the newly re-created key

tehh4ck3r ,  Thanks SO much for posting this. Deleting that regkey fixed this problem for me.