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How to Fix a Windows Keyboard Typing in All Caps

Authored by:
Support.com Tech Pro Team
This Guided Path® was written and reviewed by Support.com’s Tech Pro team. With decades of experience, our Tech Pros are passionate about making technology work for you. We love feedback! Let us know what you think about this Guided Path® by rating it at the end.

Introduction

This guide will take you through checking the most common causes of being only able to type in capital letters on your Windows computer. We'll show you how to check your Caps lock on your keyboard, teach you how your shift key works, and determine if you're having a hardware issue.
Caps Lock Key

1 Check the Keyboard Caps Lock & Shift Keys on Your Computer

Sometimes the Caps Lock and Shift keys can get stuck, causing problems.

Check the Caps Lock Key

On the left-hand side of the keyboard, press the Caps Lock key once, then try typing again.

PC Desktop Keyboard
PC Desktop Keyboard with Caps Lock highlighted
PC Laptop Keyboard
PC Laptop Keyboard with Caps Lock key highlighted

Check the Shift Key

On the left-hand side of the keyboard, make sure you aren't striking Shift key, then try typing again.

PC Desktop Keyboard
PC Desktop keyboard with Shift keys highlighted
PC Laptop Keyboard
PC Laptop keyboard with Shift keys highlighted

2 Reboot and Try Again

If the issue is still happening, you may need to restart as part of the troubleshooting process.
Before you restart or shut down your computer, make sure to save all necessary work to prevent data loss.

Reboot Your Windows PC

  1. Select the Start menu, then select Power.
    click start then power
  2. Select Restart.
    Windows 10 Power menu with Restart highlighted.
  3. Test your keyboard again to see if we fixed the issue.
    testing the keyboard in notepad

3 Rule Out a Possible Hardware Issue

If Problems Continue

Keyboards have moving parts that can wear out over time, as well as simple electronics that can have problems.

At times, the shift or caps lock key may become stuck internally on the keyboard, or the simple control processor in the keyboard may start having problems, resulting in strange behavior including all-caps typing.

  • If available, connect a different keyboard and see if problems continue. If this solves the problem, the keyboard has failed and simply needs to be replaced.
  • If the keyboard is wireless, make sure it's charged fully, or replace the batteries.
    Wireless keyboard being plugged in
  • As a last step the keyboard may need to be serviced or replaced.

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This guide will take you through checking the most common causes of being only able to type in capital letters on your Windows computer. We'll show you how to check your Caps lock on your keyboard, teach you how your shift key works, and determine if you're having a hardware issue.
Caps Lock Key
Sometimes the Caps Lock and Shift keys can get stuck, causing problems.

Check the Caps Lock Key

On the left-hand side of the keyboard, press the Caps Lock key once, then try typing again.

PC Desktop Keyboard
PC Desktop Keyboard with Caps Lock highlighted
PC Laptop Keyboard
PC Laptop Keyboard with Caps Lock key highlighted

Check the Shift Key

On the left-hand side of the keyboard, make sure you aren't striking Shift key, then try typing again.

PC Desktop Keyboard
PC Desktop keyboard with Shift keys highlighted
PC Laptop Keyboard
PC Laptop keyboard with Shift keys highlighted
If the issue is still happening, you may need to restart as part of the troubleshooting process.
Before you restart or shut down your computer, make sure to save all necessary work to prevent data loss.

Reboot Your Windows PC

  1. Select the Start menu, then select Power.
    click start then power
  2. Select Restart.
    Windows 10 Power menu with Restart highlighted.
  3. Test your keyboard again to see if we fixed the issue.
    testing the keyboard in notepad

If Problems Continue

Keyboards have moving parts that can wear out over time, as well as simple electronics that can have problems.

At times, the shift or caps lock key may become stuck internally on the keyboard, or the simple control processor in the keyboard may start having problems, resulting in strange behavior including all-caps typing.

  • If available, connect a different keyboard and see if problems continue. If this solves the problem, the keyboard has failed and simply needs to be replaced.
  • If the keyboard is wireless, make sure it's charged fully, or replace the batteries.
    Wireless keyboard being plugged in
  • As a last step the keyboard may need to be serviced or replaced.