Unity Hub Not Opening

How to fix it

Try these in order — the most common fix is first.

1. 1. Kill leftover Hub processes

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   1. Windows: open Task Manager, end every 'Unity Hub' process, then relaunch
   2. macOS: open Activity Monitor, quit all 'Unity Hub' processes, then relaunch
   3. Restart the computer if the process will not end
   Did this fix it? Yes No

2. 2. Clear the Hub cache and settings

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   1. Close Unity Hub completely
   2. Windows: delete the folder %APPDATA%\UnityHub
   3. macOS: delete ~/Library/Application Support/UnityHub
   4. Relaunch the Hub and sign in again (your installed editors and projects list may need to be re-added with Locate)
   Did this fix it? Yes No

3. 3. Allow the Hub through security software

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   1. Add Unity Hub to your antivirus and firewall allow list
   2. Temporarily disable VPN or proxy and try again
   Did this fix it? Yes No

4. 4. Reinstall the latest Hub

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   1. Uninstall Unity Hub (your editor installs are kept)
   2. Download the newest Hub from unity.com/download
   3. Install and run it as administrator on Windows
   Did this fix it? Yes No

Symptoms

Double-clicking Unity Hub does nothing, the window stays white or black, or it opens and closes immediately.

Why it happens

• Hub process still running in the background from a previous session
• Corrupted Hub settings or cache folder
• Antivirus or firewall blocking the Hub or its sign-in
• Outdated Hub version
• Missing permissions on the Unity data folders

This guide also covers

• unity hub not opening
• unity hub won't launch
• unity hub blank screen
• unity hub not responding

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