I am unable to upload new OS's because I have forgotten my Administrator password

_LOST_AGAIN wrote:

I am unable to upload new OS's because I have forgotten my Administrator password

Forgot Admin password—

Reset your Mac login password - Apple Support

https://support.apple.com/guide/mac-help/reset-your-mac-login-password-mh35902/mac

Change or reset the password of a macOS user account ...

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


Five Ways to Reset a Lost Administrator Password - TidBITS

https://tidbits.com/2014/01/17/five-ways-to-reset-a-lost-administrator-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