Sticky or Repeating Keys

Keys that stick or repeat when pressed make typing difficult and cause input errors. This page covers how to fix sticky or repeating keys. Start by identifying which keys are affected, then clean and test the keyboard.

You can verify every key using the keyboard test.

Identify Affected Keys

Use an online keyboard test to identify which keys are sticking or repeating.

• Open the keyboard test page
• Press each key and release
• Watch for keys that stay highlighted
• Note keys that register multiple times
• Identify all affected keys

Clean Keyboard

Debris under keys is the most common cause of sticky keys. Clean the keyboard.

• Turn keyboard upside down and shake gently
• Use compressed air to blow out debris
• Clean around affected keys with a soft brush
• Remove stuck keys carefully if needed
• Clean key switches and mechanisms
• Test keys after cleaning

Check for Liquid Damage

Spilled liquids can cause keys to stick. Check for liquid damage. If keys aren't registering at all, see the guide on keys not registering for additional troubleshooting.

• Inspect keyboard for signs of liquid
• If liquid was spilled, unplug keyboard immediately
• Let keyboard dry completely before testing
• Clean sticky residue with isopropyl alcohol
• Test keys after cleaning and drying

Check Key Repeat Settings

Software settings can cause keys to repeat. Check repeat rate settings.

• Windows: Settings → Ease of Access → Keyboard → Adjust repeat delay
• Mac: System Preferences → Keyboard → Adjust key repeat rate
• Increase repeat delay to reduce accidental repeats
• Test keyboard after adjusting settings

Remove and Clean Stuck Keys

For mechanical keyboards, you can remove key caps to clean underneath.

• Use a keycap puller for mechanical keyboards
• Gently pry off affected key caps
• Clean key switches with compressed air
• Clean key caps separately
• Reattach key caps carefully
• Test keys after cleaning

Check for Worn Switches

Worn key switches can cause sticking or repeating. Check switch condition.

• Test if affected keys feel different when pressed
• Check for mechanical wear on switches
• Mechanical keyboards may need switch replacement
• Contact manufacturer for replacement switches
• Consider professional repair for complex issues

Test Keyboard After Fixes

After trying these steps, use the online keyboard test to verify keys are no longer sticking or repeating. The test shows which keys respond correctly and helps identify any remaining issues.

Check your keys with the keyboard test.

Frequently Asked Questions

Use the online keyboard test to confirm everything is working.