Ho w do i delete profiles in Mac OS Mojave?

Profiles in system preferences

Select the ones you want to remove and click the – button.

Are they MDM or JAMF profiles? You would have to get the managing company to remove the Mac from their list of managed Macs.

sportsbiz wrote:

When I click on profile in system settings on my macbook air running Mojave, there are three profiles that I want to remove. How do i do that? I didn't put them there.

You do not paint a very picture of the issue. Why the difficulty removing Profile from your System Preferences?

Barney-15E above ask a good question...

also, is this your personal machine/business machine, new/used, old problem/new problem ?

If you suspect you have installed adware/malware:

>System Preferences>Profiles. found next to Accessibility (click into it and then remove all the suspicious things from the list.) May or may not be present if no profiles found.

Adware Removal Guide—Manual removal of : http://www.thesafemac.com/arg-identification/

or

Try running this trusted utility https://www.malwarebytes.com/mac/

also Verify you are not using SOCKS proxy:

>System Preferences>Networks>Advanced>Proxy uncheck the box

Adware/malware launch daemons can set SOCKS proxies without user participation.

(SOCKS is an Internet protocol that exchanges network packets between a client and server through a proxy server.)

In General—

Power Cycle your router

Disable any VPN or Proxy servers you are using

Uninstall all third party apps that are Cleaners/Optimizers/Anti-Virus

Do a safe boot if necessary  https://support.apple.com/en-us/HT201262

Do you mean Users & Groups in System Preferences or are you referring to the preferences in an App?