I had Kaspersky Anti-Virus on my MacBook Pro for a while and removed it. But I still see in my activity. It uses a lot CPU and keeps my fans running. How can I remove it entirely? thanks!

1. Go first to your Applications folder and throw Kasperksy in the trash if it isn't already.

2. From your hard disk icon, go to your Library folder and look in Application Support folder. Trash the folder called ‘Kaspersky’ (/Library/Application Support/Kaspersky)

3. Still in Library, look for and trash any of these you find:

/Library/LaunchDaemons/com.kaspersky...

Also in logs

/Library/Logs/Kaspersky.log

4. Now look for and trash all the following in the hidden Library folder in your Home folder. Use the ‘Go’ menu in Finder’s menubar and hold down the ‘Option’ key. Choose ‘Library’ from the menu (yes, this is a different Library folder from the one sitting in the root directory on your hard disk):

Home/Library/Caches/com.kaspersky...

Home/Library/LaunchAgents/com.kaspersky...

Home/Library/Logs/Kaspersky.log

Home/Library/Preferences/com.kaspersky.plist

5. Go to Applications > Utilities > Keychain Access.app and double click on it. Notice the padlock in the window is up there on the left, rather than down the bottom. Click on it and enter your admin password. Now go through all the items in the ‘Keychains’ list (such as Login, System, Root) with ‘All items’ selected in the ‘Category’ list. Anything you find related to ‘Kaspersky, click on it, then choose Edit > Delete from the menu.

6. Do a Spotlight search for Kaspersky in case there’s any other stragglers lurking about. Any and every file with 'kaspersky' in the filename needs to be trashed.

7. Click on the Finder> Secure Empty Trash...

8. Open the Activity Monitor utility (Applications>Utilities>Activity Monitor.app), make sure ‘All Processes’ is showing in the drop down menu just over on the right of the dialogue box, then scroll down the list and see if any processes called ‘Kaspersky’ are still running. If you find anything of this sort, click on it and hit ‘Quit Process’ (top left).

9. After all this is done, restart. After restarting, check the Activity Monitor one last time to be sure.

10. Finally, if you feel the need to have some kind of software watching over your downloads and attachments, use: ClamXav. (it's free, too!)