How do I remove start-up programs?

System Preferences/Users & Groups, unlock the padlock using your user password, select your account, and then click Login Items. To remove a login item, select the item, and then click the minus sign. To add an item, click the + sign, and select the item to add.

You are welcome. The above should fix that problem. What OS version are you using?

Try running this program in your normal account, 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 Report” and then paste into a reply. This will show what is running on your computer. No personal information is shown.

Etrecheck – System Information