Problem with password while installing software

Hey... In this situation I would follow the article attached below if you forgot your admin password.

https://support.apple.com/en-us/HT202860

Going this route will allow you to reset the admin user password and you'll be able to proceed with the install.

A user generally has only two passwords: local and Internet.

The local password allows you access to your Mac. The internet password (Apple ID & password) allows you access to all of Apple internet goodies. There is a firmware password, but that's not likely in play here.

This looks like it's asking for your local admin password. You must be an admin user to install software.

As has already been mentioned Local ( Computer Password and Internet Password like Apple ID Password.

Question, does this computer have more than One User Account ?

While attempting to install this software, is the user Logged into the Admin Account or a Standard User Account

Reset Computer Password  for the Administrator Account Password

Intel Computer

1 - Restart computer and immediately hold Command + r keys

2 - Top Tool Bar >> Utilities >> Terminal

3 - Type resetpassword as one word and no spaces

4 - Press Return key

5 - Follow the prompts and remember the New Password

Apple Silicon M1 Computer 

1 - Choose Apple menu > > Shut Down.

2 - Press and hold the power button on your Mac until you see “Loading startup options.”

3 - Click Options, then click Continue. 

4 - Top Tool Bar >> Utilities >> Terminal

5 - Type resetpassword as one word and no spaces

6 - Press Return key

7 - Follow the prompts and remember the New Password

No

What do you mean by reinitialize my computer ?

Details svp

No it will not

Welcome and do keep us posted on the progress - time permitting