How to Resolve Error 0xc00000e9 in Windows PC

Windows error 0xc00000e9 is a specific boot error code that you may see when your computer has trouble booting properly. It causes a blue screen to appear when you try to start your operating system and prevents it from booting.

It appears shortly after you start your computer, but before the Windows login screen, as shown below:

An unexpected I/O error has occurred.
Error code: 0xc00000e9

What causes error 0xc00000e9?

  • Damaged I/O ports.
  • Problems with Windows Update.
  • Boot sector virus or other malware.
  • Faulty external hardware or PC components.
  • Improperly configured UEFI, BIOS, or CMOS settings.
  • Damaged system files or problems with the Windows registry.
  • Incorrectly installed components, such as an unattached hard drive that is not in contact with the motherboard.

How to recover the 0xc00000e9 error message?

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How to Remove Caps Lock on Screen Notifications on Windows 10

When we press the Caps Lock key, the system displays a pop-up message saying that the Caps Lock key is on and makes a sound. Sometimes it can be annoying to see this sound and display every time we press the Caps Lock key. This article describes different ways to disable the audible and visual notification when the Caps Lock key is pressed.

What does the Caps Lock notification mean on my screen?

The Caps Lock notification can show up if your keyboard (or Ease of Access) is configured to show a notification when you turn on/off the Caps Lock key. In this case, disabling the Caps Lock notification on the keyboard (or in the Ease of Access settings) may solve the problem. However, these settings may not be available to all users, as there are different OEMs. read more