フォトショップを起動すると、初期化していますでフリーズする

Restoring Preferences after making sure all customized presets like Actions, Patterns, Brushes etc. have been saved might be a good starting point:

https://helpx.adobe.com/photoshop/using/preferences.html

https://helpx.adobe.com/photoshop/kb/basic-trouble-shooting-steps.html

Otherwise you could try using the Cleaner Tool before re-installing Photoshop. 

https://helpx.adobe.com/creative-cloud/apps/troubleshoot/diagnostics-repair-tools/prepare-to-run-creative-cloud-cleaner-tool.html