What is NotificationController.dll file?
Why does the NotificationController.dll error happen?
This post will show you answers.
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Step 1: PressWin + Ito open Windows controls.
Step 2: Click onApps>Apps & Features.
Step 4: tap on the program and selectUninstallto remove it.

After this, you might install it again at the Microsoft Store.
Step 1: PressWin + Rto fire up the Run window.
Step 2: Typecmdinto the text box and pressShift + Ctrl + Enterto run Command Prompt as administrator.

Step 3: Typesfc /scannowand hitEnter.
Step 4: TypeDISM /Online /Cleanup-image /Scanhealthand hitEnterto scan the Windows component.
Your system files should be repaired after these steps.

you’ve got the option to examine whether the error is fixed.
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Does your files get lost after CHKDSK?
Here are ways to help your recover CHKDSK deleted files in few steps.
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Step 1: PressWin + Sand typeControl Panelinto the search box.
Step 2: PressEnterto pop crack open the Control Panel window.
Step 3: SelectRecoveryif you choose theLarge iconunderView bycategory.

Step 4: press theOpen System Restoreoption.
Step 5: ClickNextto choose an appropriate system restore point, then click onNextto confirm the information.
Step 6: ChooseNextto start the restoration process.
When the process is completed, your system will revert to the previous status.
But you’re able to try the above methods to fix it by yourself.
Hope one of them can help you timely.