Enabling the widget

The Ultrathink Quick Capture widget is a lightweight desktop application that sits on top of your other windows. It lets you capture notes, files, screenshots, and voice memos without switching away from what you are working on. The widget is available for both Windows and Mac.

What you will need

Before you begin, make sure you have the following:

An Ultrathink account with a verified email address
A device key generated from the web app (see below)
Windows 10 or later, or macOS 12 (Monterey) or later

Installing on Windows

Go to the GitHub Releases page
Download the latest UltraThink-Setup-x.x.x.exe file
Run the installer and follow the on-screen prompts
Once installation completes, the widget starts automatically
The Ultrathink icon appears in your system tray (bottom-right corner of the taskbar)

Note: Windows Defender or your antivirus software may show a warning because the installer is not yet code-signed through the Microsoft Store. Click More info and then Run anyway to proceed.

Windows system requirements

Requirement	Minimum
Operating system	Windows 10 (64-bit)
RAM	4 GB
Disk space	200 MB
Display	1280x720 or higher

Installing on Mac

Go to the GitHub Releases page
Download the latest UltraThink-x.x.x-universal.dmg file
Open the DMG and drag the Ultrathink icon into your Applications folder
Open Ultrathink from the Applications folder or Spotlight
When prompted, allow accessibility permissions so the widget can stay on top of other windows

The Mac version ships as a universal binary, which means it runs natively on both Intel and Apple Silicon (M1, M2, M3, M4) processors. There is no need to choose a separate download for your chip.

Mac permissions

macOS requires you to grant specific permissions before some features work:

Permission	Required for	Where to grant
Accessibility	Always-on-top behaviour	System Settings > Privacy & Security > Accessibility
Screen Recording	Screenshot capture	System Settings > Privacy & Security > Screen Recording
Microphone	Audio recording	System Settings > Privacy & Security > Microphone

After granting any permission, you may need to restart the widget for the change to take effect.

Setting up your device key

The widget authenticates with your Ultrathink account using a device key. This is a long-lived token that keeps you connected without requiring you to log in each time you use the widget.

Generating a device key

Open the Ultrathink web app at app.ultrathink.io
Go to Settings from the left-hand menu
Select the Device Keys tab
Click Create new key
Give the key a descriptive name (for example, "Desktop widget, work laptop")
Copy the generated key

You can create multiple device keys for different devices and revoke any key at any time from the same settings page.

Click the gear icon in the widget title bar
Paste your device key into the Device Key field
Click Save

The widget connects to your account and is ready to use. All captures you make through the widget appear in your Ultrathink knowledge base alongside entries from other platforms.

System tray behaviour

After installation, the widget runs in the background and is accessible from the system tray:

Windows: The Ultrathink icon appears in the system tray area at the bottom-right of your taskbar. If the icon is hidden, click the up arrow to expand the tray and find it.
Mac: The Ultrathink icon appears in the menu bar at the top of your screen.

Right-clicking (Windows) or clicking (Mac) the tray icon gives you these options:

Show/Hide Widget: Toggle the widget window on or off
Settings: Open the settings panel
Quit: Close the widget entirely

The widget launches automatically when you start your computer. You can disable this in the widget settings if you prefer to start it manually.

Auto-updates

The widget checks for updates automatically when it starts and periodically while running. Updates are delivered through GitHub Releases.

When an update is available:

A notification appears in the widget informing you a new version is ready
Click the notification to download the update
The widget downloads the update in the background
Once the download completes, the widget restarts and applies the new version

You do not need to visit the GitHub Releases page again after the initial installation. All subsequent updates are handled through this built-in mechanism.

Verifying the installation

After completing setup, confirm everything is working:

Click the widget window or use the tray icon to show it
Type a short test note in the text field
Press Enter or click Save
Open the Ultrathink web app and check that the entry appears in your feed

If the entry appears in your knowledge base, the widget is properly connected and ready to use.

Troubleshooting

Check that Windows Defender has not blocked the application
Try running the installer as administrator (right-click the .exe and select Run as administrator)
If the application appears corrupted, uninstall it from Settings > Apps and reinstall from the latest release

Open System Settings > Privacy & Security and check whether macOS is blocking the app
Click Open Anyway if you see a security warning
Make sure accessibility permissions are granted

Device key not accepted

Open the Ultrathink web app and go to Settings > Device Keys
Confirm the key has not been revoked
Copy the key again and paste it into the widget, making sure there are no extra spaces
Check your internet connection

Next steps

Your widget is installed and connected. Continue to the next pages to learn about:

Widget positioning: how to move, resize, and configure always-on-top behaviour
Quick capture mode: how to capture text, files, voice notes, and screenshots
Widget shortcuts: keyboard shortcuts available in the widget

Widget positioning