Links on this site earn me fees or commissions.
As an Amazon Associate I earn from qualifying purchases @AMAZON
As an Amazon Associate I earn from qualifying purchases @AMAZON

Get all the tools you need to upgrade the factory HDD of any 2009-2019 iMac to a larger HDD or a modern SSD.
Set up a Normal User Account (and use it)
For everyday use, login as a Standard user, NOT an administrative user. Logging in as a standard user restricts the things that can be done without the administrator password (such as installing software).

Create another account that has standard privileges, not administrator privileges