Hello, Thomas Nguyen2.
Welcome to Microsoft Community!
I noticed that you forgot your login password while trying to access Surface Studio 2.
Can you see the option to forget your password in your current screen?
If you are using a Microsoft account to sign in, please try going to the following link to change your Microsoft account password:
Reset a forgotten Microsoft account password - Microsoft Support
If you have forgotten your local account password, you may need to bypass password entry by resetting your device:
Shift+Reboot - Troubleshooting - Reset this computer - After that, choose to delete everything - Completely clean the drive
Since it's difficult to backup your data by resetting your device through this procedure, I'm sharing a link with you ahead of time here:
Back up your Windows PC - Microsoft Support
Due to the special nature of local accounts, regaining access by resetting the device is an effective solution when the password is forgotten.
Please feel free to let me know if you need further assistance, I am always here to support you.
Best Regards.
Leo.L - Microsoft Community Support Specialist