Jan 19, 2017 Apple added a command called trimforce in OS X 10.10.4, allowing Mac owners using third party SSDs to enable TRIM. Open a new Terminal window. You can do this by simply searching “terminal” in Spotlight or heading to “Applications - Utilities - Terminal.”.
I am trying to install a 3rd party app, but when I try to run it, I always get the message: The developer cannot be checked. When I search for a solution, I find the info about entering to the Security and Privacy panel, general tab, and to change the settings to allow software from anywhere.
BUT I do not have it!
I have only From Apple store, and Apple store + identified developers.
I am admin on the machine, and I can correctly identify myself, when entering the Security and Privacy panel.
Thank’s for any help here. Catalina.
—–
Szabolcs Kovats
Third Party Software Definition

Safari User Guide
You can change options in Safari preferences so that Safari always accepts or always blocks cookies and website data.
In the Safari app on your Mac, choose Safari > Preferences, click Privacy, then do any of the following:
Allow Third Party Software Mac 2017
Prevent trackers from using cookies and website data to track you: Select “Prevent cross-site tracking.”
Cookies and website data are deleted unless you visit and interact with the trackers’ websites.
Always block cookies: Select “Block all cookies.”
Websites, third parties, and advertisers can’t store cookies and other data on your Mac. This may prevent some websites from working properly.
Always allow cookies: Deselect “Block all cookies.”
Websites, third parties, and advertisers can store cookies and other data on your Mac.
Remove stored cookies and data: Click Manage Website Data, select one or more websites, then click Remove or Remove All.
Removing the data may reduce tracking, but may also log you out of websites or change website behavior.
See which websites store cookies or data: Click Manage Website Data.
Iphone Third Party Software
Note: Changing your cookie preferences or removing cookies and website data in Safari may change or remove them in other apps.