Windows Error Message Generator

This Windows error message generator builds a realistic-looking error dialog box in your browser and lets you save it as an image. Pick a Windows era, choose an icon, type your own title and message, then export a clean PNG — no real error, no screenshot editing.

Every dialog faithfully recreates the look of its generation, from Windows XP and Windows 7 to Windows 10 and Windows 11. It is handy for pranking friends, making memes, mocking up UI for a presentation, or showing how Windows dialogs evolved over the years.

Private by design: the dialog is drawn and exported entirely in your browser. Any wallpaper you upload is read locally and never leaves your device — nothing is uploaded to a server.

How to Make a Fake Windows Error

Pick a Windows version

Choose XP, 7, 10, or 11. The live preview redraws instantly to match that era's titlebar, buttons, and colors.

Choose an icon

Select Error, Warning, Info, Question, or Security to set the icon shown beside your message.

Enter title and message

Type a custom Title for the titlebar and your Message in the text area. The preview updates as you type.

Set an error code and buttons

Pick one of the preset Windows error codes or choose Custom... to type your own hex code, then select a button layout such as OK, Yes / No, or Abort / Retry / Ignore.

Choose a background

Pick a desktop wallpaper preset or upload your own image. It is used behind the dialog in fullscreen preview and when you export with a background.

Preview or export

Click Fullscreen to see the dialog over a desktop background, or Export Image to save it as a PNG.

Features

Four Windows Styles

Recreate the authentic dialog look of Windows XP, 7, 10, and 11 — titlebar, buttons, and colors true to each era.

Five Icon Types

Switch between Error, Warning, Info, Question, and Security icons, each drawn in a Windows-style look.

Custom Title and Message

Type any title and message text — rendered safely so your exact words appear in the dialog.

Real Error Codes

Choose from nine genuine Windows error codes like 0x80070005 and 0x80004005, or enter your own custom hex code.

Five Button Layouts

Pick standard Windows combinations: OK, OK / Cancel, Yes / No, Retry / Cancel, or Abort / Retry / Ignore.

Desktop Backgrounds

Choose from six wallpaper presets — Windows Default, XP, 7, 10, 11, and Dark — or upload your own image.

Live Preview

Every change to the version, icon, text, code, or buttons redraws the dialog instantly so you see the result as you build it.

Draggable Fullscreen

Open fullscreen to view the dialog over a desktop background and drag its titlebar to position it anywhere on screen.

PNG Export at 2x

Save your dialog as a crisp 2x-resolution PNG — on its own, or composited onto a full 1920×1080 desktop screenshot.

Dark Mode

A built-in dark theme keeps the editor comfortable to use in low-light settings.

Frequently Asked Questions

How do I make a fake Windows error message?

Pick a Windows version, choose an icon, and type your own title and message. Add an error code and a button layout if you want, then click Export Image to save the dialog as a PNG. Everything happens on this page — there is nothing to install.

Can I customize the title, text, and buttons?

Yes. The title and message are free text, and you can pick from five button layouts: OK, OK / Cancel, Yes / No, Retry / Cancel, and Abort / Retry / Ignore. You also choose the icon and the error code shown under the message.

Which Windows versions can it mimic?

Four versions: Windows XP, Windows 7, Windows 10, and Windows 11. Each recreates that era's titlebar style, button design, and color scheme.

Does it play the Windows error sound?

No. This tool generates the visual dialog and exports it as a still image — it does not play any sound.

Can I use my own background image?

Yes. Click the + swatch in the Background section to upload any image from your device. It becomes the desktop wallpaper in fullscreen preview and when you export with the Include Background option enabled.

What resolution is the exported image?

The image is rendered at 2x resolution for sharp quality. Exported without a background, it matches the dialog's size on a transparent canvas. Exported with a background, it is a full 1920×1080 desktop screenshot with the dialog centered on your chosen wallpaper.

How do I save or screenshot the error message?

Click Export Image and the dialog is saved straight to your device as a PNG file — no manual screenshot or cropping needed. Toggle Include Background first if you want the full desktop look.

Is making a fake error message safe — is it a virus?

It is completely safe. The generator only draws a picture of a dialog and saves it as an image — it never changes your system, runs nothing on your computer, and uploads nothing. It is intended for harmless fun, memes, and mockups, so use it considerately.

How do I move the dialog or exit fullscreen?

In fullscreen, drag the dialog's titlebar to reposition it anywhere on screen. To leave fullscreen, press Escape or click anywhere outside the dialog.