Finder not opening at startup

Hello Kx2,

We understand that Finder is not opening when starting up your Mac. Let's access safe mode. Completing this step allows us to determine if the issue is caused by software that loads on your Mac. Your screen may flash and it may load slow. However, this is expected behavior while in this mode: How to use safe mode on your Mac

We look forward to hearing back from you with the results.

Take care.

Hello kx2,

If the Finder still won't open in safe mode, then you'll want to test another user account to determine if the issue is specific to your user account or system wide.

To create a user account go to System Preferences > Users & Groups, then click the + button in the bottom left to add an account. For the account type just select Standard, and you can name the account Test or whatever you'd like to use to identify it.

Change Users & Groups settings on Mac

Once you've created the account, switch over to it ( > Log Out) and see if the Finder opens over there or not.

If there is nothing happening when you click the Finder icon in that account either, then you'll want to contact Apple to report the issue: Get Support

Cheers!