1) First Download the free Version of CC Cleaner
https://www.piriform.com/ccleaner/download
2) After you install it and load it up. Left click on “Cleaner” and to the right click “Run Cleaner”. Once it’s done hit “Run Cleaner” again. Do this over and over until you see nothing come up.
3) Then Left click “Registry” just below Cleaner on the left side of the CC Cleaner. Run this too over and over again until you do not see anything. Delete anything it finds.
4) Uninstall PC Keeper
5) Uninstall McCafee
6) After uninstalling these two programs go back to steps 2 and 3. When done then move to step 7.
7) Reboot your CPU.
8) Download and install Microsoft Security Essentials. It’s free too. On the link scroll down to the “English” version.
https://support.microsoft.com/en-us/help/14210/security-essentials-download
9) Once installed click on the “Update Tab” and right click on update definitions.
10) Once you have the latest updates, then left click on the “Home” tab. On the right hand side of the “Home” tab left click on “Full” and hit “Scan Now”.
When you do a “Full Scan” it will take a while to run. You can still use your computer, but it will be slower. Anyway, its free and should catch anything
Good luck!