This error effectively paralyzes Photoshop. Without the homescreen extension, you cannot see your recent files, access cloud documents, or sometimes even open the standard "New File" dialog. The good news? This is a known issue with a set of reliable fixes.
If that solves it, re-add extensions one by one to find the culprit.
This long-form guide will explain what the UXP extension is, why this error occurs specifically in Photoshop 2021, and provide to resolve it permanently. failed to load the uxp homescreen extension photoshop 2021
Upon restarting, Photoshop will rebuild this folder. This solution specifically targets the "Failed to load the UXP Homescreen extension" error because it isolates the UXP engine from its old, potentially corrupt cache data.
Photoshop will now launch with factory default settings. Do not be alarmed if your workspaces look different; this is normal. This error effectively paralyzes Photoshop
If resetting preferences did not work, the next step is to force Photoshop to regenerate the specific files associated with the UXP extensions. By renaming the folder where these files live, Photoshop cannot find the corrupted versions and is forced to create fresh ones.
Sometimes the underlying UXP framework is damaged across all Adobe apps. The official Cleaner Tool removes and reinstalls core components. This is a known issue with a set of reliable fixes
Insufficient storage on the primary drive can prevent the UXP panel from initializing. Step-by-Step Solutions 1. The "UXP Folder" Reset (Recommended)
Some security software blocks UXP components.
The UXP extension relies on Microsoft Visual C++ redistributables. If these are missing or corrupt, the extension fails.