(Choosing remove settings when uninstalling is also sufficient).
Click Start then type ‘regedit’, delete the registry folder found at HKEY_CURRENT_USER\Software\TeamViewer & the folder HKEY_LOCAL_MACHINE\SOFTWARE\TeamViewer.
Click Start the type %temp% and delete the contents of this folder as well as the C:\Windows\temp folder.
Click Start then type ‘%appdata%’ – now delete the Teamviewer folder.
Uninstall TeamViewer (best way is to use CCleaner).
Procedure B: If TeamViewer is already installed (i.e.
Maximize your TeamViewer installation window again and click "Finish" to complete the installation.
Then also swap the values of the State= item of and so that only has the value of State=1 (i.e.
Change the value of Flags= key item in and by swapping their values between DISABLED and GROUP|NOTIFY so you have Flags=GROUP|NOTIFY in.
Inside that directory open the "start_unicode.ini" file with Notepad or Notepad++.
Open the nsxXXXX.tmp directory (where the Xes are some random characters/numbers).
Go to the Detailed view (View -> Details), and sort at the Date modified column.
Now go to your temp directory by typing "%tmp%" into the location bar and hitting enter. the file manager, not Internet Explorer).
Leave the "Advanced settings" installation window open (as shown above) and start Windows Explorer (i.e.