Q: How do you remove Totiteck from my Mac?

1. Use  Malwarebytes Anti-Malware for Mac to remove adware

     https://www.malwarebytes.org/antimalware/mac/

   Download, install , open,  and run it by clicking “Scan for Adware” button   to remove adware.

   Once done, quit Malwarebytes Anti-Malware.

2. Disable Extensions and test.

   Safari > Preferences > Extensions

   Select and disable all extensions and test.

   Enable Extensions one by one and test.

   To uninstall any extension, select it and click the “Uninstall” button.

3. Safari > Preferences > Search > Search engine:

     Select your preferred search engine

4.  Visit the site you want it be the Home page

     Safari > Preferences > General >  Homepage

     Set your Homepage.

If this doesn't help:

How to remove adware?

You will have t do this after starting up in Safe Mode to prevent adware

from interfering with the removal of adware .

1. Shut down the computer.

    Press the power button. Immediately after you hear the startup sound,

    press and hold the Shift key.

    The Shift key should be pressed as soon as possible after startup,

    but not before the startup sound.

    Release the Shift key when you see the Apple logo on the screen.

    Startup will take longer than usual.

    Screen flickering is normal in Safe Mode.

    Login to your account. Launch Safari.

    Enter this address       https://www.malwarebytes.org/antimalware/mac/

    in the Safari address bar.

    Download,   Install , open,  and run it by clicking “Scan”  button   to remove adware, if present.

    Once done, quit MalwareBytes.

2. Safari > Preferences > Extensions

    Turn all extensions off.

3. Safari > Preferences >  Search > Search Engine :

    Select your preferred   search engine.

4. Safari > Preferences > General > Homepage:

     Set your Homepage.

5. Restart normally from  menu in the menu bar.

If the above doesn't work, try running this program and then copy and paste the output in a reply. The program was created by Etresoft, a frequent contributor.  Please use copy and paste as screen shots can be hard to read. On the screen with Options, please open Options and check the bottom 2 boxes before running. Click “Share Report” button in the toolbar, select “Copy to Clipboard” and then paste into a reply. This will show what is running on your computer. No personal information is shown.

Etrecheck – System Information