Start Run, REGEDIT
File, and FIND
Type in: "Systemtweak" and press enter
Now once it finds an appearance, right click to modify. Then delete. Say yes to: "I understand it may cause stuff to stop working correctly"
Press F3 to continue searching the rest of the registry
Find all other appearances in the registry and delete.
Once it finishes searching the entire registry, go back to the top "Computer" and now do a find, on "RegClean Pro" or any other Malware that may be bothering windows. (example) search for "Advanced System Protection"
Now once it finds an appearance, right click to modify. Then delete. Say yes to "I understand it may cause Stuff to stop working correctly"
Press F3 to continue searching the registry
Find all other appearances in the registry and delete.
Be careful not to harm any other files.....