So, what exactly is the error, and why does it appear?
What does NotificationController.dll Missing Error Mean?
The NotificationController.dll is an essential file for every program on your setup.

When you launch a program, it uses this file to find necessary instructions.
When your gear fails to grab instructions from the NotificationController.dll, it fails to launch the program.
Heres what you’re able to do.

you better go through that article and pick the tool that suits your needs and budget.
After fixing the DLL Missing errors, you must cycle your gear to apply the changes.
- punch the Windows Start button and selectSettings.

When the Windows controls opens, switch to theWindows Updatetab on the left sidebar.
On the right side, click theCheck for Updatesbutton.
Now, Windows will automatically find all pending updates and will install them.

Reinstall the Problematic App
Sometimes, NotificationController.dll missing error can be linked to faulty app installation or corrupted files.
you’re free to reinstall the problematic app to resolve all app installation problems.
- punch Windows search and key in inControl Panel.

- pop pop the Control Panel app from the list and selectUninstall a program.
Now right-choose the program showing you the error and selectUninstall.
It can potentially fix most Windows problems, including missing DLL errors.

Heres how to launch the SFC tool on Windows.
- tap on Windows search and pop in inCMD.
Right-press the Command Prompt and selectRun as Administrator.

When the Command Prompt opens, typesfc /scannowand pressEnter.
You must wait until the SFC command scans and repairs all corrupted system files.
However, you’re free to only perform a System Restore if the Restore points are enabled previously.

- tap on Windows search and throw in inSystem Restore.
From the list of apps that appears, selectRecovery.
On the Restore system files and parameters window, click onNext.

Now select your ideal restore point and click onNext.
On the confirmation window, select theFinishbutton.
see to it to back up your important files and folders before you reset your Windows PC.

- punch Windows Search and selectSettings.
On tweaks, switch to theWindows Updatetab on the left.
Now, on the right side, punch theAdvanced Options.

On the right side, click onRecovery.
Next, on the Recovery options, click onReset PC.
On the Choose an option prompt, selectKeep My Files.

On the next screen, selectCloud Download.
Now, follow the on-screen instructions to factory reset your Windows PC.
After the reset, implement the app again; you wont get the NotificationController.dll missing error this time.

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