trusted installer is the god of your machine not administrator. You could give your account trusted installer rights.
I did not see a good link on how to properly set up your account so that admin would be a superset of trusted installer.
Most of the links have you replace trusted installer with your account (not the best idea) or they just have you take ownership of the files in question with the file properties menu or the cmd.exe takeown.exe command. Then use cacls.exe to give your self permissions to access the file
I would use explorer.exe find the file /directory I want to modify, right click to bring up properties, select the security tab
and look at the rights for my account and compare it to the rights of trustedinstaller.
on my windows 10 machine:
trustedinstaller has Full Control, modify, read &execute, Read, write
my admin account has Read & execute, and read.
I would edit the permissions and give my admin account the missing rights.
This might be better than giving your admin account all the rights for all the files on your machine.
I think taking ownership from trustedinstaller for the entire system would be a mistake.