*READ THE INSTRUCTIONS*

1.Close TeamViewer,if it is running.

2.Click on START -> Run -> type %appdata% -> delete TeamViewer folder

3.Click on START -> Run -> type regedit -> Delete registry folder(right click->delete): HKEY_CURRENT_USER/software/teamviewer and HKEY_LOCAL_MACHINE/software/teamviewer

4.Restart PC

[NOTE] When installing TeamViewer choose "Non-comercial use"