Open the file and define a local cache path on your external drive: cache = "../../../../UPM_Cache" Use code with caution.
Locate the installation directory on your local machine (usually C:\Program Files\Unity\Hub\Editor\[Version] ). Copy the entire version folder (e.g., 2022.3.20f1 ).
Do not use standard USB 2.0 or 3.0 flash drives. They lack the random read/write speeds required for asset indexing. Use an external NVMe M.2 SSD enclosed in a USB 3.2 Gen 2 (or Thunderbolt) chassis.
Copy the entire version folder (e.g., 2022.3.15f1 ) to your external drive. unity portable install top
Download the generated transaction file ( .ulf ) and place it on your external drive.
Are you aiming to develop this as a to make existing installs portable?
While Unity doesn't offer an officially portable version that can be run directly from a USB drive on any computer, you can achieve a level of portability through cloud services, remote desktop applications, or by carrying your projects and development environment on an external drive. The best approach depends on your specific needs, the size and complexity of your projects, and the devices you have access to. Open the file and define a local cache
@echo off SET PORTABLE_DIR=%~dp0 SET EDITOR_PATH=%PORTABLE_DIR%Editor\Unity.exe SET HUB_PROJS=%PORTABLE_DIR%Projects SET CACHE_DIR=%PORTABLE_DIR%UnityCache start "" "%EDITOR_PATH%" -projectPath "%HUB_PROJS%" -assetServerCachePath "%CACHE_DIR%" -profilerHistoryPath "%CACHE_DIR%" Use code with caution. Step 3: Managing the License File
Download Visual Studio Code Portable or use JetBrains Rider configured to run entirely from your external drive.
The Ultimate Guide to Unity Portable Installs: Top Workflows and Best Practices Do not use standard USB 2
This creates a single large .exe you can carry on a thumb drive. Critical Tips for Portable Installs Run Unity from USB Flash drive - Unity Discussions
You can plug your drive into any compatible computer and start coding or designing instantly without downloading gigabytes of data.