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Fix OneNote Typing Random Letters While Drawing with a Pen

Maira Mehtab Sep 27, 2026 869 views

Question details

Users experience an input glitch where random keyboard letters appear on the screen when attempting to draw or write using a digital pen.

Product: Microsoft OneNote
Device & OS: not provided
Scenario: Taking handwritten notes or sketching inside a notebook using a digital stylus.
Observed behavior: Instead of or alongside registering the digital ink strokes, the application automatically types random keyboard letters onto the page.

Before you start

Ensure your digital pen is fully charged and that there are no physical keys stuck on your attached keyboard, as background inputs can interfere with digital inking.

Solution 1Recommended

Isolate the Input Method and Platform

Perform a series of diagnostic tests to determine if the issue is caused by the physical pen, the desktop application, or a general system glitch.

To effectively stop the random letters from appearing, you first need to identify the root cause. This involves testing alternative input methods and switching to the web-based version of OneNote.

Test with touch input

Put your digital pen aside. Use your finger to draw on the OneNote canvas. If the random letters stop appearing, the issue is directly related to the digital pen's hardware, drivers, or Bluetooth shortcuts.

Test in OneNote for the Web

Open your web browser and navigate to onenote.com. Log in and attempt to draw with your digital pen in the web interface. If it works perfectly there, your OneNote desktop application may be corrupted and require a repair.

Why perform these tests?: Isolating the issue helps prevent unnecessary software uninstalls and points you directly to whether you need to troubleshoot the pen hardware or the OneNote app.

Solution 2

Verify Account-Specific Glitches

Switch between personal and work/school accounts to rule out policy or sync-related input errors.

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Frequently Asked Questions

Why does my digital pen act like a keyboard in OneNote?

This can happen if the pen's Bluetooth shortcut buttons are misconfigured to trigger keystrokes, or if a bug in the Windows Ink Workspace is misinterpreting the stylus input. Checking your Pen & Windows Ink settings can often resolve this.

Will repairing the OneNote app fix the drawing glitch?

If you tested OneNote for the Web and the pen worked perfectly, the desktop app is likely at fault. Going to Windows Settings > Apps > Installed Apps, selecting OneNote, and choosing 'Repair' can fix corrupted files causing the glitch.

Can poor palm rejection cause random letters to type?

While palm rejection issues usually result in stray ink marks or accidental scrolling, a software glitch could theoretically misinterpret a resting palm combined with a macro or touch gesture as a keyboard input.

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